Precooling
预冷; 预冷却
🗣️ 情景例句
When will you be through with your homework?
你的家庭作业什么时候可以做完？
Between two stools one falls to the ground.
脚踏两头要落空。
There's a customer, Tod. Will you serve him?
托德，顾客来了，你去照应一下好吗？