试题与答案

涡轮、蜗杆传动中通常涡轮、蜗杆两轴线在空间()A.相交成90° B.相互平行 C.相

题型:单项选择题

题目:

涡轮、蜗杆传动中通常涡轮、蜗杆两轴线在空间()

A.相交成90°

B.相互平行

C.相交成任意角度

D.交错成90°

答案:

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