liner plates

• 垫板

liner plates的用法和样例：

例句

1. Pads that bottom out will have hardened plates.
   最底的垫板应该热处理。
2. Hardened backing plates are required on all punch retainers and where stamps are used.
   在所有冲头的固定器后以及压印的地方都要求是用热处理的垫板。