It is always a significant object to study the orographic effect on the planetary atmosphere.

行星大气中地形效应的研究一直是人们十分重视的问题。

youdao

The ship broke through into a planetary atmosphere so clear it seemed as transparent as water.

飞船闯入了像水一样透明的行星大气之中是如此清晰。

youdao

Though large, the transports were capable of operating and landing within a planetary atmosphere, deploying hundreds of troops and their vehicles into combat.

虽然庞大，但这种运输舰能在行星大气层内运行和着陆，把数以百计的士兵及其运载工具投放到战场上。

youdao

Its presence in large quantities in a planetary atmosphere (as on Earth) would be enormously suggestive to alien-hunters.

ECONOMIST: Extra-terrestrial life

Its atmosphere is escaping like a comet but on a planetary scale.

NPR: NASA Sends Spacecraft to Pluto