mould lubricant

例句：

1. 1. The mould lubricant helps to prevent the parts from sticking together during the casting process.
   模具润滑剂有助于在铸造过程中防止部件粘在一起。
2. 2. The engineer used a special lubricant to make the machine run smoothly.
   工程师使用了一种特殊的润滑剂使机器运行顺畅。
3. 3. The lubricant is essential for preventing wear and tear on the machine parts.
   润滑剂对于防止机器零件磨损至关重要。