As they heat up, the ice turns directly into a gas — a process called “sublimation.”

当它们升温时，冰就直接变成气体——这个过程被称为“升华”。

That blood-coloured figure was a sublimation of all the horrid dreams which had afflicted the juvenile spirit since imagination began.

这个血红色的人物，子始有力起就折磨幼小心灵的噩梦的升华。

There are tantalizing observations of localized water vapor on the surface, which may be from sublimation: ice turning directly into a gas due to the Sun's heat, or it might indicate cryovolcanoes.

谷神星表面有一些缭绕的小范围水蒸气，它们升华形成的：由于太阳的热量，冰直接变成了气体，或者可能有冰火山的存在。