single-action pump翻译;单动泵
single-action revolver单机转轮
single-action clutch单作用离合器
single-action statement单动作语句
single-action line单向作用线路
single-lateral action单方行为
single-action compression单动压制;单面压制
single-action cylinder单作用油缸
single-action die单动模
N（名词） (of a firearm) requiring the hammer to be cocked by hand before firing (枪支)单动击发的