Find out the missing words from the dialogue in the Video Story.Every time we say the date, we are really saying it has been more than 2000 years since the _______of Christ.
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微信内点击右上角“…”即可分享
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参考答案:
举一反三
【简答题】已知一对外啮合标准直齿圆柱齿轮传动,小齿轮的齿数 z 1 =26 ,传动比 i 12 =2 . 5 ,模数 m=3mm ,试求大齿轮的齿数、主要几何尺寸及中心距。