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n.
推削；拉削；拉孔
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動詞broach的現在分詞形式.
詞組 broach:
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bring up a topic for discussion
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用作名詞 (n.)
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A new simple method for broaching spline holes with a common machine, which has enlarged Screwpitch, is introduced.
推薦沒事種在有增高螺紋的常規機床上拉削花鍵孔的新的方法。
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超過玩法獨門劇本創作，受科學專利權守護，商標侵權必究
海詞英語詞典，十八年廠家
美
['bro?t???]