lubricant groove

例句：

1. 1.The machine has a lubricant groove that helps it run smoothly.
   这台机器有一个润滑油槽，有助于它顺畅运行。
2. 2.Lubricant grooves are important for preventing wear and tear on moving parts.
   润滑油槽对于防止移动部件的磨损至关重要。
3. 3.Engineers have developed new materials with lubricant grooves to improve efficiency.
   工程师们开发了新的材料，具有润滑油槽以提高效率。