backup plate

• 垫片,靠板

backup plate的用法和样例：

例句

1. This article presented a teaching experimental platform on general measurement and selected mating about the roller bearing pretension backup plate.
   介绍了一种以滚动轴承预紧垫片综合测量选配为主的教学实验平台。

词汇搭配

• back up (因积聚而)拥堵...