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counterbore
US
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UK
A1 初級
n.
名詞
沉
影片字幕
首頁 機床製造廠刀具製造 - 加工指板夾緊工具 - 第一部分 (Home Machine Shop Tool Making - Machining A Finger Plate Clamping Tool - Part 1)
09:23
The holes were opened up with a twist drill, and the
counterbore
for the bushing holder was put in with an end mill.
B1 中級