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silicate的复数形式为:silicates...
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gonococcus的复数形式为:gonococci...
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从而为范成法加工任意齿形的齿轮奠定了理论基础.Then, a theoretical foundation is established for gear generation with arbitary profile.本文采取计算和实测方法分析了齿轮滚刀重磨后齿形的变化,认为齿面畸变是重磨齿形误差的主要原因.It is believed that the flank distortion is the main reason of ...
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beachcomber的复数形式为:beachcombers...
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ladyship的复数形式为:ladyships...
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walking stick的复数形式为:walking sticks...
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philanthropy的复数形式为:philanthropies...