判断题
谐波减速器的名字来源于刚轮齿圈上任一点径向位移呈近似余弦波形的变 化。参考答案:错误
谐波减速器的名字来源于刚轮齿圈上任一点径向位移呈近似余弦波形的变 化。参考答案:错误
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单项选择题
After such a time preparation, none of the engineers could come up with a viable plan.
After such a time preparation, none of the engineers could come up with a viable plan.
A.possible
B.feasible
C.reliable
D.visible