center punch

短语

[电] 冲心机

发音

center punches 复数 center punches center punched center punches 三单 center punching center punching 现在分词 center punched 过去式 center punched 过去分词

centre punch

1.

A tool used to create a small indentation in preparation for drilling a hole.

美国可数
2.

The small indentation created by such a tool.

美国可数

1.

To create a small hole or indentation in a workpiece as a guide in preparation for drilling.

美国

名词

动词