Precoated
(precoat 的过去时) (在过滤器表面涂敷的)滤料层
🗣️ 情景例句
We're in the country.
我们在乡村。
I'm afraid you will miss your bus.
我怕你会错过公共汽车。
I agree. Which museum would you like to visit?
我同意。你想参观哪个博物馆呢？