| 单词 | 工件 |
| 释义 | 〔center〕A small conical hole made in a piece of work with a center punch so that a drill can be accurately positioned within it.中心孔，转柄孔：在带中心冲头的工件上为使钻头准确放置而做的小锥形孔〔faceplate〕A disk attached to the mandrel of a lathe to hold the work to be turned.面板：安装在车床活动芯轴上以使工件转动的盘 |
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