曲柄
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在连架杆中,能绕其轴线回转360度的构件称为曲柄。
曲柄: crank
A device for transmitting rotary motion, consisting of a handle or arm attached at right angles to a shaft.
在连架杆中,能绕其轴线回转360度的构件称为曲柄。
曲柄: crank
A device for transmitting rotary motion, consisting of a handle or arm attached at right angles to a shaft.