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【简答题】
某高炮上的手动传动机构,如图所示,已知各轮齿数为 z 1 =35,z 2 =17, z 2 ′=35,z 3 =17,z 3 ′=1(右旋),z 4 =27,z 4 ′=20,z 5 =224;设圆锥齿轮1的转向如图中箭头所示,试求i 15 ,并用箭头标出齿轮 5的转向。
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