clearance grinding

例句：

1. 1. The engineer used a special tool to clear the debris from the machine.
   工程师使用特殊的工具来清理机器上的碎片。
2. 2.The car was polished to a shine before the big event.
   在大型活动之前，这辆车被抛光得闪闪发光。
3. 3. During the cleanup process, it's important to remove all traces of oil and grease.
   在清理过程中，重要的是要去除所有油和油脂的痕迹。