请输入您要查询的英文单词:
单词
center punch
释义
center punch
简明释义
中心冲:一种金属工具,用于在金属表面上打出一个小凹点,以便在钻孔或螺纹加工时保持钻头或丝锥的准确位置。
网络释义
短语
1
self centering punch
自定心冲孔器
2
self-centering punch
自定中心冲
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更新时间:2025/8/20 17:48:57