defatting

例句：

1. 1. The machine needs to be defatted before it can be used again.
   这台机器在使用前需要先进行脱脂处理。
2. 2. The food was defatted before being served to the guests.
   食物在上桌前进行了脱脂处理。
3. 3. The factory has been defatting its machines for years.
   这家工厂多年来一直在对机器进行脱脂处理。