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气门弹簧的功用是保证气门随着凸轮动作有节奏地开启、闭合,同时有足够的弹力克服气门及相关运动零件所产生的惯性力。
The function of the valve spring is to ensure that the valve opens and closes rhythmically with the cam action with enough elasticity to overcome the inertial force generated by the valve and related moving parts.