hand tamp

例句：

1. 1. The hand tamp was usedto seal the letter.
   用手压封了信。
2. 2. The compressed air was usedto inflate the tire.
   压缩空气被用来给轮胎充气。
3. 3. Theflattened surface ofthe metal plate was smooth andeven.
   金属板的表面被压平且光滑平整。