滚削斜齿圆柱齿轮时需要哪几条传动链：（）。_爱下问搜题

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问题填空题

滚削斜齿圆柱齿轮时需要哪几条传动链：（）。

答案

参考答案：主运动传动链，展成运动传动链，附加运动传动链，垂直进给运动传动链

选择题

I suggested to my father that we _____ to Dalian for a holiday this summer, but the expression on his face suggested that he _____ to it.

A. go; shouldn't agree
B. would go; shouldn't agree
C. go; didn't agree
D. would go; didn't agree

问答题

用下图所示的滑轮组提升重物，若拉力F将绳子的自由端移动1.5m时，重物升高0.5m，请在图中画出绳子的绕法。