subliming

例句：

1. 1. The process of sublimation is responsible for the formation of ice crystals in winter.
   升华过程是冬季形成冰晶的原因。
2. 2. The sublimation of gases into solids is a natural process that occurs during the formation offrost.
   气体升华为固体是一种自然的过程，发生在霜的形成过程中。
3. 3. The sublimation of methane into carbon dioxide is a significant step in the greenhouse effect.
   甲烷升华成二氧化碳是温室效应中的一个重要步骤。