... tapping machine 攻牙机，攻丝机；开口机；纸箱粘合机；螺纹切削机床 tapping screw 自攻螺钉 tapping hole 螺纹孔，螺丝孔；放出口 ...
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... screw 螺钉 screw-cutting machine 螺纹切削机床 screwdriver potentiometer 改锥调的电位器 ...
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tapping machine
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screw cutting machine
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