valve lifter meaning in English

阀挺杆
阀推杆
起阀器
气门拆卸工具
气门提升凸轮
气门挺杆；气门提升器
汽门举杆

The value-opening mechanism includes a valve lifter and a cam on a camshaft .
一套气门开启机构包括一个气门挺杆和一个在凸轮轴上的凸轮。
Since the engine has no valves, it doesn't need any camshaft, valve lifters and so on .
因为发动机没有阀门，它不需要任何凸轮轴、起阀器等。
Mechanical valve lifter
机械式汽门举杆
Hydraulic valve lifter
液压式汽门举杆
Exhaust valve lifter
排气门挺杆