clean district

• 洁净区

clean district的用法和样例：

例句

1. Fumigation of clean areas may be useful for reducing microbiological contamination in inaccessible places.
   对洁净区内难以进入的角落进行熏蒸是减少微生物污染的有用的方法。
2. The typical single door lyophilizer opens in the clean area only, and contamination between loads would be minimal.
   在单门的箱体上，门只在洁净区打开，装载过程中的污染最小。