Galileo was forced to recant his assertion that the earth orbited the sun.

伽利略被迫放弃地球围绕太阳转断言。

Let's pretend we're on the spaceship orbiting round the earth!

让假装是在沿轨道绕地球运转宇宙飞船上!

The mass was calculated by timing the orbit of Eris' moon Dysnomia.

通过对厄里斯卫星--戴丝诺米娅运行轨道计时后计算出了厄里斯。

A plane orbited over the landing field.

有一架飞机在机场上空盘旋。

The earth orbits the sun once every 365.25 days.

地球每365.25天绕太阳轨道一圈。

They put a weather satellite into orbit round the earth.

他把一颗气卫星送入环绕地球轨道。

Mars, Venus and the other planets move in eccentric orbits.

火星、金星及其他行星沿不正圆轨道运行。

Our satellite itself will orbit around the moon for a period of two days.

人造卫星本身将绕月球运行两天时间。

The orbit of the artificial satellite has an apogee of 200 miles from the earth.

这个人造卫星轨道，其最远点在离地球200英里地方。

Mercury orbits the Sun.

水星环绕太阳运行。

Also, as our sun orbits the galactic center it may sweep through areas of interstellar dustiness.

同样，因为太阳位于重力中心，它可能会清除有星际尘埃区域。

The first satellites placed in geostationary orbit were the synchronous communication(SYNCOM)satellites launched by NASA in 1963.

第一个放置在对地静止轨道卫星是1963年美国航空暨太空总署发射同步传输卫星.

The repeated thrust applications at apoapsis would raise periapsis from inside to outside the stationary orbit.

重复在远心点施以推力，会将近心点由同步轨道内提升到同步轨道外。

It orbits an inhospitable ice world named Orto Plutonia, which was a protectorate of the Pantorans.

它围绕一颗不适宜居住冰冻星球奥托普卢托尼亚旋转，奥托普卢托尼亚是潘托拉人保护地。

Apollo 8 was a test in which an Apollo moonship was put into orbit around the moon.

太阳神八号是将一艘登月艇纳入绕月球轨道一项试验。

John Glenn, the first American to orbit the earth, carried pureed applesauce in squeezable tubes on his initial space flight.

3．约翰?格伦，第一位绕地环行美国宇航员，在他首次飞行时带有软管包装苹果酱。

The shape and perigee of artificial satellite orbits shall continually variate due to caused by the atmospherical drag and the earth gravity.

人造地球卫星轨道由于大气阻力和地球引力场等因素摄动,其形状和近地点位置将不断改变。

Abstract.The first orbit maneuver of lunar orbit insertion (LOI) must be implemented at the first perilune of the spacecraft flight to the moon.

月球捕获控制第一次制动必须在卫星飞向月球第一近月点完成。

After completing lunar swingby maneuvers, the A spacecraft is intended to orbit the Sun "Ahead" of planet Earth, and the B spacecraft "Behind".

在完成对探测器变轨后，A飞船将在地球前方绕行太阳，而B飞船则在"后方"绕行。

It is a tiny joyrider from the rubble stream surrounding the solar system that broke free and orbits the sun in a tilted, elongated orbit.

它是从围绕太阳系而又自由浮动一堆剩余物中游走出来一颗星。它体积微小，以倾斜、细长轨道围着太阳运转。

Galileo was forced to recant his assertion that the earth orbited the sun.

伽利略被迫放弃地球围绕太阳转断言。

Let's pretend we're on the spaceship orbiting round the earth!

让我们假装是沿轨道绕地球运转宇宙飞船上!

The mass was calculated by timing the orbit of Eris' moon Dysnomia.

通过对厄里斯卫星--戴丝诺米娅运行轨道计时后计算出了厄里斯质量。

A plane orbited over the landing field.

有一架飞场上空盘旋。

The earth orbits the sun once every 365.25 days.

地球每365.25天绕太阳轨道一圈。

They put a weather satellite into orbit round the earth.

他们把一颗气卫星送入环绕地球轨道。

Mars, Venus and the other planets move in eccentric orbits.

火星、金星及其他行星沿不轨道运行。

Our satellite itself will orbit around the moon for a period of two days.

我们人造卫星本身将绕月球运行两天时间。

The orbit of the artificial satellite has an apogee of 200 miles from the earth.

这个人造卫星轨道，其最远点离地球200英里地方。

Mercury orbits the Sun.

水星环绕太阳运行。

Also, as our sun orbits the galactic center it may sweep through areas of interstellar dustiness.

同样，因为太阳位于重力中心，它可能会清除有星际尘埃区域。

The first satellites placed in geostationary orbit were the synchronous communication(SYNCOM)satellites launched by NASA in 1963.

第一个放置对地静止轨道卫星是1963年美国航空暨太空总署发射同步传输卫星.

The repeated thrust applications at apoapsis would raise periapsis from inside to outside the stationary orbit.

重复远心点施以推力，会将近心点由同步轨道内提升到同步轨道外。

It orbits an inhospitable ice world named Orto Plutonia, which was a protectorate of the Pantorans.

它围绕一颗不适宜居住冰冻星球奥托普卢托尼亚旋转，奥托普卢托尼亚是潘托拉人保护地。

Apollo 8 was a test in which an Apollo moonship was put into orbit around the moon.

太阳神八号是将一艘登月艇纳入绕月球轨道一项试验。

John Glenn, the first American to orbit the earth, carried pureed applesauce in squeezable tubes on his initial space flight.

3．约翰?格伦，第一位绕地环行美国宇航员，他首次飞行时带有软管包装苹果酱。

The shape and perigee of artificial satellite orbits shall continually variate due to caused by the atmospherical drag and the earth gravity.

人造地球卫星轨道由于大气阻力和地球引力场等因素摄动,其形状和近地点位置将不断改变。

Abstract.The first orbit maneuver of lunar orbit insertion (LOI) must be implemented at the first perilune of the spacecraft flight to the moon.

月球捕获控制第一次制动必须卫星飞向月球第一近月点完成。

After completing lunar swingby maneuvers, the A spacecraft is intended to orbit the Sun "Ahead" of planet Earth, and the B spacecraft "Behind".

完成对探测器变轨后，A飞船将地球前方绕行太阳，而B飞船则"后方"绕行。

It is a tiny joyrider from the rubble stream surrounding the solar system that broke free and orbits the sun in a tilted, elongated orbit.

它是从围绕太阳系而又自由浮动一堆剩余物中游走出来一颗星。它体积微小，以倾斜、细长轨道围着太阳运转。

Galileo was forced to recant his assertion that the earth orbited the sun.

伽利略被迫放弃地球围绕太阳转断言。

Let's pretend we're on the spaceship orbiting round the earth!

让我们假装是在沿轨道绕地球转宇宙飞船上!

The mass was calculated by timing the orbit of Eris' moon Dysnomia.

通过对厄里斯卫星--戴丝诺行轨道计后计算出了厄里斯质量。

A plane orbited over the landing field.

有一架飞机在机场上空盘旋。

The earth orbits the sun once every 365.25 days.

地球每365.25绕太阳轨道一圈。

They put a weather satellite into orbit round the earth.

他们把一颗气卫星送入环绕地球轨道。

Mars, Venus and the other planets move in eccentric orbits.

火星、金星及其他行星沿不正圆轨道行。

Our satellite itself will orbit around the moon for a period of two days.

我们人造卫星本身将绕月球行两间。

The orbit of the artificial satellite has an apogee of 200 miles from the earth.

这个人造卫星轨道，其最远点在离地球200英里地方。

Mercury orbits the Sun.

水星环绕太阳行。

Also, as our sun orbits the galactic center it may sweep through areas of interstellar dustiness.

同样，因为太阳位于重力中心，它可能会清除有星际尘埃区域。

The first satellites placed in geostationary orbit were the synchronous communication(SYNCOM)satellites launched by NASA in 1963.

第一个放置在对地静止轨道卫星是1963年美国航空暨太空总署发射同步传输卫星.

The repeated thrust applications at apoapsis would raise periapsis from inside to outside the stationary orbit.

重复在远心点施以推力，会将近心点由同步轨道内提升到同步轨道外。

It orbits an inhospitable ice world named Orto Plutonia, which was a protectorate of the Pantorans.

它围绕一颗不适宜居住冰冻星球奥托普卢托尼亚旋转，奥托普卢托尼亚是潘托拉人保护地。

Apollo 8 was a test in which an Apollo moonship was put into orbit around the moon.

太阳神八号是将一艘登月艇纳入绕月球轨道一项试验。

John Glenn, the first American to orbit the earth, carried pureed applesauce in squeezable tubes on his initial space flight.

3．约翰?格伦，第一位绕地环行美国宇航员，在他首次飞行带有软管包装苹果酱。

The shape and perigee of artificial satellite orbits shall continually variate due to caused by the atmospherical drag and the earth gravity.

人造地球卫星轨道由于大气阻力和地球引力场等因素摄动,其形状和近地点位置将不断改变。

Abstract.The first orbit maneuver of lunar orbit insertion (LOI) must be implemented at the first perilune of the spacecraft flight to the moon.

月球捕获控制第一次制动必须在卫星飞向月球第一近月点完成。

After completing lunar swingby maneuvers, the A spacecraft is intended to orbit the Sun "Ahead" of planet Earth, and the B spacecraft "Behind".

在完成对探测器变轨后，A飞船将在地球前方绕行太阳，而B飞船则在"后方"绕行。

It is a tiny joyrider from the rubble stream surrounding the solar system that broke free and orbits the sun in a tilted, elongated orbit.

它是从围绕太阳系而又自由浮动一堆剩余物中游走出来一颗星。它体积微小，以倾斜、细长轨道围着太阳转。

Galileo was forced to recant his assertion that the earth orbited the sun.

伽利略被迫放弃地球围绕太阳转断言。

Let's pretend we're on the spaceship orbiting round the earth!

让我们假装是沿轨道绕地球运转宇宙飞船上!

The mass was calculated by timing the orbit of Eris' moon Dysnomia.

通过厄里斯卫星--戴丝诺米娅运行轨道计时后计算出了厄里斯质量。

A plane orbited over the landing field.

有一架飞机机场上空盘旋。

The earth orbits the sun once every 365.25 days.

地球每365.25天绕太阳轨道一圈。

They put a weather satellite into orbit round the earth.

他们把一颗气卫星送入环绕地球轨道。

Mars, Venus and the other planets move in eccentric orbits.

火星、金星及其他行星沿不正圆轨道运行。

Our satellite itself will orbit around the moon for a period of two days.

我们人造卫星本身将绕月球运行两天时间。

The orbit of the artificial satellite has an apogee of 200 miles from the earth.

这个人造卫星轨道，其最远点离地球200英里地方。

Mercury orbits the Sun.

水星环绕太阳运行。

Also, as our sun orbits the galactic center it may sweep through areas of interstellar dustiness.

同样，因为太阳位于重力中心，它可能会清除有星际尘埃区域。

The first satellites placed in geostationary orbit were the synchronous communication(SYNCOM)satellites launched by NASA in 1963.

第一个放地静止轨道卫星是1963年航空暨太空总署发射同步传输卫星.

The repeated thrust applications at apoapsis would raise periapsis from inside to outside the stationary orbit.

重复远心点施以推力，会将近心点由同步轨道内提升到同步轨道外。

It orbits an inhospitable ice world named Orto Plutonia, which was a protectorate of the Pantorans.

它围绕一颗不适宜居住冰冻星球奥托普卢托尼亚旋转，奥托普卢托尼亚是潘托拉人保护地。

Apollo 8 was a test in which an Apollo moonship was put into orbit around the moon.

太阳神八号是将一艘登月艇纳入绕月球轨道一项试验。

John Glenn, the first American to orbit the earth, carried pureed applesauce in squeezable tubes on his initial space flight.

3．约翰?格伦，第一位绕地环行宇航员，他首次飞行时带有软管包装苹果酱。

The shape and perigee of artificial satellite orbits shall continually variate due to caused by the atmospherical drag and the earth gravity.

人造地球卫星轨道由于大气阻力和地球引力场等因素摄动,其形状和近地点位将不断改变。

Abstract.The first orbit maneuver of lunar orbit insertion (LOI) must be implemented at the first perilune of the spacecraft flight to the moon.

月球捕获控制第一次制动必须卫星飞向月球第一近月点完成。

After completing lunar swingby maneuvers, the A spacecraft is intended to orbit the Sun "Ahead" of planet Earth, and the B spacecraft "Behind".

完成探测器变轨后，A飞船将地球前方绕行太阳，而B飞船则"后方"绕行。

It is a tiny joyrider from the rubble stream surrounding the solar system that broke free and orbits the sun in a tilted, elongated orbit.

它是从围绕太阳系而又自由浮动一堆剩余物中游走出来一颗星。它体积微小，以倾斜、细长轨道围着太阳运转。

Galileo was forced to recant his assertion that the earth orbited the sun.

伽利略被迫放弃地球围绕太阳转的断言。

Let's pretend we're on the spaceship orbiting round the earth!

让我们假装是在沿轨道绕地球运转的宇宙飞船上!

The mass was calculated by timing the orbit of Eris' moon Dysnomia.

通过对厄里斯的卫星--米娅运行轨道计时后计算出了厄里斯的质量。

A plane orbited over the landing field.

有一架飞机在机场上空盘旋。

The earth orbits the sun once every 365.25 days.

地球每365.25天绕太阳轨道一圈。

They put a weather satellite into orbit round the earth.

他们把一颗气卫星送入环绕地球的轨道。

Mars, Venus and the other planets move in eccentric orbits.

火星、金星及其他行星沿不正圆的轨道运行。

Our satellite itself will orbit around the moon for a period of two days.

我们的人造卫星本身将绕月球运行两天的时。

The orbit of the artificial satellite has an apogee of 200 miles from the earth.

人造卫星的轨道，其最远点在离地球200英里的地方。

Mercury orbits the Sun.

水星环绕太阳运行。

Also, as our sun orbits the galactic center it may sweep through areas of interstellar dustiness.

同样的，因为太阳位于重力的中心，它可能会清除有星际尘埃的区域。

The first satellites placed in geostationary orbit were the synchronous communication(SYNCOM)satellites launched by NASA in 1963.

第一放置在对地静止轨道的卫星是1963年美国航空暨太空总署发射的同步传输卫星.

The repeated thrust applications at apoapsis would raise periapsis from inside to outside the stationary orbit.

重复在远心点施以推力，会将近心点由同步轨道内提升到同步轨道外。

It orbits an inhospitable ice world named Orto Plutonia, which was a protectorate of the Pantorans.

它围绕一颗不适宜居住的冰冻星球奥托普卢托尼亚旋转，奥托普卢托尼亚是潘托拉人的保护地。

Apollo 8 was a test in which an Apollo moonship was put into orbit around the moon.

太阳神八号是将一艘登月艇纳入绕月球轨道的一项试验。

John Glenn, the first American to orbit the earth, carried pureed applesauce in squeezable tubes on his initial space flight.

3．约翰?格伦，第一位绕地环行的美国宇航员，在他的首次飞行时带有软管包装的苹果酱。

The shape and perigee of artificial satellite orbits shall continually variate due to caused by the atmospherical drag and the earth gravity.

人造地球卫星的轨道由于大气阻力和地球引力场等因素的摄动,其形状和近地点位置将不断改变。

Abstract.The first orbit maneuver of lunar orbit insertion (LOI) must be implemented at the first perilune of the spacecraft flight to the moon.

月球捕获控制第一次制动必须在卫星飞向月球的第一近月点完成。

After completing lunar swingby maneuvers, the A spacecraft is intended to orbit the Sun "Ahead" of planet Earth, and the B spacecraft "Behind".

在完成对探测器变轨后，A飞船将在地球的前方绕行太阳，而B飞船则在"后方"绕行。

It is a tiny joyrider from the rubble stream surrounding the solar system that broke free and orbits the sun in a tilted, elongated orbit.

它是从围绕太阳系而又自由浮动的一堆剩余物中游走出来的一颗星。它体积微小，以倾斜、细长的轨道围着太阳运转。

Galileo was forced to recant his assertion that the earth orbited the sun.

伽利略被迫放弃地球围绕太阳转的断言。

Let's pretend we're on the spaceship orbiting round the earth!

让我们假装在沿轨道绕地球运转的宇宙飞船上!

The mass was calculated by timing the orbit of Eris' moon Dysnomia.

通过对厄里斯的--戴丝诺米娅运行轨道计时后计算出了厄里斯的质量。

A plane orbited over the landing field.

有一架飞机在机场上空盘旋。

The earth orbits the sun once every 365.25 days.

地球每365.25天绕太阳轨道一圈。

They put a weather satellite into orbit round the earth.

他们把一颗气送入环绕地球的轨道。

Mars, Venus and the other planets move in eccentric orbits.

火、金及其他行沿不正圆的轨道运行。

Our satellite itself will orbit around the moon for a period of two days.

我们的人造本身将绕月球运行两天的时间。

The orbit of the artificial satellite has an apogee of 200 miles from the earth.

这个人造的轨道，其最远点在离地球200英里的地方。

Mercury orbits the Sun.

水环绕太阳运行。

Also, as our sun orbits the galactic center it may sweep through areas of interstellar dustiness.

同样的，因为太阳位于重力的中心，它可能会清除有际尘埃的区域。

The first satellites placed in geostationary orbit were the synchronous communication(SYNCOM)satellites launched by NASA in 1963.

第一个放置在对地静止轨道的1963年美国航空暨太空总署发射的同步传输.

The repeated thrust applications at apoapsis would raise periapsis from inside to outside the stationary orbit.

重复在远心点施以推力，会将近心点由同步轨道内提升到同步轨道外。

It orbits an inhospitable ice world named Orto Plutonia, which was a protectorate of the Pantorans.

它围绕一颗不适宜居住的冰冻球奥托普卢托尼亚旋转，奥托普卢托尼亚潘托拉人的保护地。

Apollo 8 was a test in which an Apollo moonship was put into orbit around the moon.

太阳神八号将一艘登月艇纳入绕月球轨道的一项试验。

John Glenn, the first American to orbit the earth, carried pureed applesauce in squeezable tubes on his initial space flight.

3．约翰?格伦，第一位绕地环行的美国宇航员，在他的首次飞行时带有软管包装的苹果酱。

The shape and perigee of artificial satellite orbits shall continually variate due to caused by the atmospherical drag and the earth gravity.

人造地球的轨道由于大气阻力和地球引力场等因素的摄动,其形状和近地点位置将不断改变。

Abstract.The first orbit maneuver of lunar orbit insertion (LOI) must be implemented at the first perilune of the spacecraft flight to the moon.

月球捕获控制第一次制动必须在飞向月球的第一近月点完成。

After completing lunar swingby maneuvers, the A spacecraft is intended to orbit the Sun "Ahead" of planet Earth, and the B spacecraft "Behind".

在完成对探测器变轨后，A飞船将在地球的前方绕行太阳，而B飞船则在"后方"绕行。

It is a tiny joyrider from the rubble stream surrounding the solar system that broke free and orbits the sun in a tilted, elongated orbit.

它从围绕太阳系而又自由浮动的一堆剩余物中游走出来的一颗。它体积微小，以倾斜、细长的轨道围着太阳运转。

Galileo was forced to recant his assertion that the earth orbited the sun.

伽利略被迫放弃地球围绕断言。

Let's pretend we're on the spaceship orbiting round the earth!

让我们假装是在沿轨道绕地球运宇宙飞船上!

The mass was calculated by timing the orbit of Eris' moon Dysnomia.

通过对厄里斯卫星--戴丝诺米娅运行轨道计时后计算出了厄里斯质量。

A plane orbited over the landing field.

有一架飞机在机场上空盘旋。

The earth orbits the sun once every 365.25 days.

地球每365.25天绕轨道一圈。

They put a weather satellite into orbit round the earth.

他们把一颗气卫星送入环绕地球轨道。

Mars, Venus and the other planets move in eccentric orbits.

火星、金星及其他行星沿不正圆轨道运行。

Our satellite itself will orbit around the moon for a period of two days.

我们人造卫星本身将绕月球运行两天时间。

The orbit of the artificial satellite has an apogee of 200 miles from the earth.

这个人造卫星轨道，其最远点在离地球200英里地方。

Mercury orbits the Sun.

水星环绕运行。

Also, as our sun orbits the galactic center it may sweep through areas of interstellar dustiness.

同样，因位于重力中心，它可能会清除有星际尘埃区域。

The first satellites placed in geostationary orbit were the synchronous communication(SYNCOM)satellites launched by NASA in 1963.

第一个放置在对地静止轨道卫星是1963年美国航空暨空总署发射同步传输卫星.

The repeated thrust applications at apoapsis would raise periapsis from inside to outside the stationary orbit.

重复在远心点施以推力，会将近心点由同步轨道内提升到同步轨道外。

It orbits an inhospitable ice world named Orto Plutonia, which was a protectorate of the Pantorans.

它围绕一颗不适宜居住冰冻星球奥托普卢托尼亚旋，奥托普卢托尼亚是潘托拉人保护地。

Apollo 8 was a test in which an Apollo moonship was put into orbit around the moon.

神八号是将一艘登月艇纳入绕月球轨道一项试验。

John Glenn, the first American to orbit the earth, carried pureed applesauce in squeezable tubes on his initial space flight.

3．约翰?格伦，第一位绕地环行美国宇航员，在他首次飞行时带有软管包装苹果酱。

The shape and perigee of artificial satellite orbits shall continually variate due to caused by the atmospherical drag and the earth gravity.

人造地球卫星轨道由于大气阻力和地球引力场等因素摄动,其形状和近地点位置将不断改变。

Abstract.The first orbit maneuver of lunar orbit insertion (LOI) must be implemented at the first perilune of the spacecraft flight to the moon.

月球捕获控制第一次制动必须在卫星飞向月球第一近月点完成。

After completing lunar swingby maneuvers, the A spacecraft is intended to orbit the Sun "Ahead" of planet Earth, and the B spacecraft "Behind".

在完成对探测器变轨后，A飞船将在地球前方绕行，而B飞船则在"后方"绕行。

It is a tiny joyrider from the rubble stream surrounding the solar system that broke free and orbits the sun in a tilted, elongated orbit.

它是从围绕系而又自由浮动一堆剩余物中游走出来一颗星。它体积微小，以倾斜、细长轨道围着运。

Galileo was forced to recant his assertion that the earth orbited the sun.

伽利略被迫放弃地球围绕太阳转的断言。

Let's pretend we're on the spaceship orbiting round the earth!

让我们假装是在沿轨道绕地球运转的宇宙飞船上!

The mass was calculated by timing the orbit of Eris' moon Dysnomia.

通过对厄里斯的卫星--戴丝诺米娅运行轨道计时后计算出了厄里斯的质量。

A plane orbited over the landing field.

有一架飞机在机场上空盘旋。

The earth orbits the sun once every 365.25 days.

地球每365.25天绕太阳轨道一。

They put a weather satellite into orbit round the earth.

他们把一颗气卫星送入环绕地球的轨道。

Mars, Venus and the other planets move in eccentric orbits.

火星、金星及其他行星沿不正圆的轨道运行。

Our satellite itself will orbit around the moon for a period of two days.

我们的人造卫星本身将绕月球运行两天的时间。

The orbit of the artificial satellite has an apogee of 200 miles from the earth.

这个人造卫星的轨道，其最远点在离地球200英里的地方。

Mercury orbits the Sun.

水星环绕太阳运行。

Also, as our sun orbits the galactic center it may sweep through areas of interstellar dustiness.

同样的，因为太阳位于重力的中心，它可能会清除有星际尘埃的区域。

The first satellites placed in geostationary orbit were the synchronous communication(SYNCOM)satellites launched by NASA in 1963.

第一个放置在对地静止轨道的卫星是1963航空暨太空总署发射的同步传输卫星.

The repeated thrust applications at apoapsis would raise periapsis from inside to outside the stationary orbit.

重复在远心点施以推力，会将近心点由同步轨道内提升到同步轨道外。

It orbits an inhospitable ice world named Orto Plutonia, which was a protectorate of the Pantorans.

它围绕一颗不适宜居住的冰冻星球奥托普卢托尼亚旋转，奥托普卢托尼亚是潘托拉人的保护地。

Apollo 8 was a test in which an Apollo moonship was put into orbit around the moon.

太阳神八号是将一艘登月艇纳入绕月球轨道的一项试验。

John Glenn, the first American to orbit the earth, carried pureed applesauce in squeezable tubes on his initial space flight.

3．约翰?格伦，第一位绕地环行的宇航员，在他的首次飞行时带有软管包装的苹果酱。

The shape and perigee of artificial satellite orbits shall continually variate due to caused by the atmospherical drag and the earth gravity.

人造地球卫星的轨道由于大气阻力和地球引力场等因素的摄动,其形状和近地点位置将不断改变。

Abstract.The first orbit maneuver of lunar orbit insertion (LOI) must be implemented at the first perilune of the spacecraft flight to the moon.

月球捕获控制第一次制动必须在卫星飞向月球的第一近月点完成。

After completing lunar swingby maneuvers, the A spacecraft is intended to orbit the Sun "Ahead" of planet Earth, and the B spacecraft "Behind".

在完成对探测器变轨后，A飞船将在地球的前方绕行太阳，而B飞船则在"后方"绕行。

It is a tiny joyrider from the rubble stream surrounding the solar system that broke free and orbits the sun in a tilted, elongated orbit.

它是从围绕太阳系而又自由浮动的一堆剩余物中游走出来的一颗星。它体积微小，以倾斜、细长的轨道围着太阳运转。

Galileo was forced to recant his assertion that the earth orbited the sun.

伽利略被迫放弃地球围绕太阳转的断言。

Let's pretend we're on the spaceship orbiting round the earth!

让我们假装是沿轨道绕地球运转的宇宙飞船上!

The mass was calculated by timing the orbit of Eris' moon Dysnomia.

通过对厄里斯的卫星--戴丝诺米娅运行轨道计时后计算出了厄里斯的质量。

A plane orbited over the landing field.

有一架飞上空盘旋。

The earth orbits the sun once every 365.25 days.

地球每365.25天绕太阳轨道一圈。

They put a weather satellite into orbit round the earth.

他们把一颗气卫星送入环绕地球的轨道。

Mars, Venus and the other planets move in eccentric orbits.

火星、金星及其他行星沿的轨道运行。

Our satellite itself will orbit around the moon for a period of two days.

我们的人造卫星本身将绕月球运行两天的时间。

The orbit of the artificial satellite has an apogee of 200 miles from the earth.

这个人造卫星的轨道，其最远点离地球200英里的地方。

Mercury orbits the Sun.

水星环绕太阳运行。

Also, as our sun orbits the galactic center it may sweep through areas of interstellar dustiness.

同样的，因为太阳位于重力的中心，它可能会清除有星际尘埃的区域。

The first satellites placed in geostationary orbit were the synchronous communication(SYNCOM)satellites launched by NASA in 1963.

第一个放置对地静止轨道的卫星是1963年美国航空暨太空总署发射的同步传输卫星.

The repeated thrust applications at apoapsis would raise periapsis from inside to outside the stationary orbit.

重复远心点施以推力，会将近心点由同步轨道内提升到同步轨道外。

It orbits an inhospitable ice world named Orto Plutonia, which was a protectorate of the Pantorans.

它围绕一颗适宜居住的冰冻星球奥托普卢托尼亚旋转，奥托普卢托尼亚是潘托拉人的保护地。

Apollo 8 was a test in which an Apollo moonship was put into orbit around the moon.

太阳神八号是将一艘登月艇纳入绕月球轨道的一项试验。

John Glenn, the first American to orbit the earth, carried pureed applesauce in squeezable tubes on his initial space flight.

3．约翰?格伦，第一位绕地环行的美国宇航员，他的首次飞行时带有软管包装的苹果酱。

The shape and perigee of artificial satellite orbits shall continually variate due to caused by the atmospherical drag and the earth gravity.

人造地球卫星的轨道由于大气阻力和地球引力等因素的摄动,其形状和近地点位置将断改变。

Abstract.The first orbit maneuver of lunar orbit insertion (LOI) must be implemented at the first perilune of the spacecraft flight to the moon.

月球捕获控制第一次制动必须卫星飞向月球的第一近月点完成。

After completing lunar swingby maneuvers, the A spacecraft is intended to orbit the Sun "Ahead" of planet Earth, and the B spacecraft "Behind".

完成对探测器变轨后，A飞船将地球的前方绕行太阳，而B飞船则"后方"绕行。

It is a tiny joyrider from the rubble stream surrounding the solar system that broke free and orbits the sun in a tilted, elongated orbit.

它是从围绕太阳系而又自由浮动的一堆剩余物中游走出来的一颗星。它体积微小，以倾斜、细长的轨道围着太阳运转。