而极位夹角的存在是机构具有急回特性的一个明显标志。

The existence of extreme positions angle is a significant mark for the mechanism with quick return characteristic.

youdao

而极位夹角的存在是机构具有急回特性的一个明显标志。

The existence of extreme positions angle is a significant mark for the mechanism with quick return characteristic.

youdao