The plane is high in the sky.

那架机在空行。

The plane flew at an altitude of 20, 000 feet.

这架机在两万英尺的空行。

They were monitoring the upper air to collect evidence of atomic explosions.

他们正在检测空空气以收集原子爆炸的证据。

The pilot shot up to a high altitude where he let loose full blat.

行员将机猛地升上了空，然后全速前进。

How can many people do such a "High riskful behaviour"?

居然有人做这样的“空惊险动作”，原因是什么。

You have to have nerves of steel to be a steeplejack.

你要勇敢些，才能当一名空作业。

The plane flew upwards.

机空。

Dayton International Ltd.- Aerial work platform, underbridge work platform, boom, scissor, vertical lift, scaffold, material lift, ladder, fibreglass ladder, safety belt.

空作台、桥底作车、臂式升降台、剪刀式升降台、垂直升降台、作架、物料升降机、铝梯、纤维梯。

Analogous to a sundog or parhelion, the paraselene is produced by moonlight shining through thin, hexagonal-shaped ice crystals in high cirrus clouds.

类似环日的形成一样，在空卷云中，月光通过稀薄、具有六边形状的冰晶时产生了幻月。

The German aerialist submerges his half-naked body in a bathtub filled with water then propels himself up a rope to fly, twist and spurt water.

这名德国的空杂技师先将自己半裸的上身浸入水中，然后通过绳索做出身、曲和溅水花等动作。

The relationship between arctic tropopause height and surface air temperature is discussed by using the aerological sounding and surface data during 1977-1990 in Beijing area.

利用北京地区1977—1990年的空、地面资料，讨论了极地对流层顶与地面温度的关系。

Iraqi security forces were placed on high alert and American aircraft —unpiloted reconnaissance drones flying low, and fighter jets roaring high above —crossed the capital.

伊拉克安全部队处于警戒状态，美国空军在首都上空穿梭，无人驾驶侦察机低空行，战斗喷气机空呼啸。

After three of postdoctoral study at UCSD, he went to Germany in 1978 to work at the Max-Planck-Institute for Aeronomy (now MPI for Solar System Research).

在加大担任三年博士后研究员，便到德国的马普空大气研究所(今改名为马普太阳系研究所)担任研究员(1978-1998)。