self lubricating block

例句：

1. 1. The new self-lubricating block is designed to reduce friction in the engine.
   新型自润滑块设计用于减少发动机中的摩擦。
2. 2. The engineer used a self-lubricating block to prevent the gears from seizing up.
   工程师使用自润滑块以防止齿轮卡住。
3. 3. The self-lubricating block was an innovative solution to the problem of wear and tear on machinery.
   自润滑块是解决机械磨损问题的创新解决方案。