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直径仅为2.5毫米的单螺杆,是甚么机床加工的? |
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ZHIJINGJINWEI2.5HAOMIDEDANLUOGAN,SHISHENMEJICHUANGJIAGONGDE? LUOGANDIANJIAOFA,ZHANGCHU:HESHIXIXIAOJILIANGCHANWUHEGAOZHANDUJIAOSHUI,JILIANGJINGQUEJINGDUGAOSHUANGZUFENJIAOSHUIPEIBISIYIKESHE。 |
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