行星

Asteroids,also known as “minor planets”,are numerous in the outer space.

小行,亦称为“小型行”,在外太空中不计其数。

Pluto is the furthest planet from the sun.

是离太阳最远行。

Neptune is the furthest planet from the sun.

海是离太阳最远行。

We cannot presume the existence of life on other planets.

我们不能推定其他行上没有生物。

The planets move around the sun in ellipses.

各行围绕太阳按椭圆形运转。

With Tirol before it, the motley battlewagon went on combat alert.

在泰洛行周围，各种战舰处于战斗警戒状态。

By gravitation the sun and planets act and react upon one another.

太阳与行通过引力发挥作用并相互影响。

Small meteorites have left impact craters all over the planet’s surface.

这个行表面布满了小块陨石留下击坑。

Long long ago, we knew the periodic motion of a planet.

很久以前, 我们就知道行周期运动。

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

火、金及其他行沿不正圆轨道运行。

Travel through space to other planets interests many people today.

现在很多人对去宇宙中其它行旅行感兴趣。

Is there life on other planets?

在其他行上有生命吗?

A kind of new mechanical transmission-the planetary ringy gear transmission is introdueed.

提出了一种适用于无游梁抽油机新型传动机构-行齿环传动。

The ability to do this will be necessary in future flights to distant planets.

"在将来向遥远行飞行,需要这样能力。"

The exoplanet's atmosphere condenses out minerals such as enstatite, corundum, spinel, and wollastonite.

这颗系外行大气冷凝后产生矿物，如：顽火辉石、刚玉、尖晶石和硅灰石。

The Salamanders Chapter hails from a binary planetary system in the western reaches of the Ultima Segmentum.

火蜥蜴军团家园位于极限系西部边缘地带行上。

It is 9 major planet run the great synodic period in the youngest covering of the fan 180 years.

一百八十年是九大行运行到最小扇面之内大会合周期。

Some people have reported seeing more semivolatile elements in a class of interplanetary dust particles (IDPs) called “chondritic porous” IDPs.

曾有人报告在一类被称作“多孔球粒陨石”行尘埃颗粒（IDPs）中见到了较多半挥发性元素。

The researchers concluded that the heat generated by the joint decay of 26Al and 60Fe could not have caused asteroidal melting.

研究人员认为铝26和铁60产生热加起来，仍无法使小行熔化。

They told the story of a "space probe" by the inhabitants of another planet who came to the Baya-Kara-Ula mountain range.

他们述说了另外一颗行居民乘“太空探测器”到达Baya-Kara-Ula山脉故事。