Vibration dampeners make certain electric pumps somewhat quieter, by absorbing some of the shock pump action.
避震器能吸收水泵运转时产生的震动,从而使电动水泵听起来安静一些.
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英英释义
Noun
1. action mechanism in a modern rifle or shotgun; a back and forward motion of a sliding lever ejects the empty shell case and cocks the firearm and loads a new round