Plunger valves柱塞阀
spring plunger[机] 弹簧定位销;弹簧锁销;弹簧柱塞;弹弓座
plunger arm柱塞臂;调节臂
plunger piston柱塞;柱状活塞
plunger tube隔磁管
contact plunger接触活塞
plunger armature活塞衔铁;吸入式衔铁
magnet plunger插棒式电磁;电磁阀柱塞;螺线管磁铁;栓形磁铁
valve plunger[车辆] 阀柱塞;止回阀柱塞;活门柱塞
N-COUNT（可数名词） A plunger is a device for clearing waste pipes. It consists of a rubber cup on the end of a stick which you press down several times over the end of the pipe. (疏通管道用的)搋子