With an adjustable crank pin to control the length of stroke. As the bull gear rotates, the rocker arm is.

惠氏机构的电机转动重载齿轮，驱动一个带有可调整销钉的曲柄以便控制进、回程的长度。

youdao

With an adjustable crank pin to control the length of stroke. As the bull gear rotates, the rocker arm is.

惠氏机构的电机转动重载齿轮，驱动一个带有可调整销钉的曲柄以便控制进、回程的长度。

youdao