wearout

wear out That job is a wearout, it is cold, dirty. He really wears me out.

他把我整得精疲力竭。

Itwasproposed that defoamers “wearout” with time because the oil is gradually emulsified togive droplets and thus lenses which are too small.

他们提出，消泡剂随着时“尽”，因为油被逐步乳化形成小滴，因此镜也变得太小了。