oscillating saw

例句：

1. 1. The construction crew used an oscillating saw to cut through the concrete wall.
   建筑工人使用振荡锯切割混凝土墙。
2. 2. The engineer tested the new oscillating saw to ensure it was safe for use.
   工程师测试了新的振荡锯，以确保其安全可用。
3. 3. The old man used his oscillating saw to clear away the weeds in his garden.
   老人用他的振荡锯清除了他花园里的杂草。