“回动”的拼音为：huí dòng...

回动弹簧将压力板拉远离合器板,因此可以分离离合器.The retracting spring pulls the pressure plate away from clutch plate thus disengaging clutch....

“回动的”的英语可以翻译为：eversing ...

“回动”的英语可以翻译为：[机] reverse ...