The benzene vaporized and formed a huge cloud of gas.

苯蒸发形成了一大团气体。

《柯林斯英汉双解大词典》

The interstellar cloud of gas and dust is an active star-forming region.

由气体和尘埃组成的星系云是一个恒星形成的活跃区域。

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In the well known Pleiades star cluster, starlight is slowly destroying this wandering cloud of gas and dust.

在著名的昴宿星团里，星光正缓慢地摧毁这些游荡的气体和尘埃的云团。

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One shows the remains of a dying star four thousand light years away which has thrown off a cloud of glowing hydrogen gas.

VOA: special.2009.09.30

On its route to earth, light from some quasars passed through a cloud of gas.

ECONOMIST: Fundamental physics

Steven Mandel trains his 7-inch telescope on a portion of the Veil Nebula, a cloud of gas 1, 600 light-years away.

FORBES: A Star Is Born

These molecules appear at the fringe of the cloud of gas whose gravitational collapse and subsequent heating signals the birth of a star.

ECONOMIST: Planetary formation