freeze-dry
/ˈfriːzdraɪ/verb
with obj.［usu. as adj. freeze-dried］
- preserve (something) by rapidly freezing it and then subjecting it to a high vacuum which removes ice by sublimation用冷冻干燥法保存（食品等）, 使冷冻干燥（先快速冷冻然后在高真空状态下通过升华除冰）：
freeze-dried beef stew.
经过冷冻干燥处理的炖牛肉。