plunger [ˈplʌndʒɚ]

例句:

• The plunger retraced at once.
  柱塞即缩回.
  
• The solenoid plunger pulls the vent valve down, blocking off the passage to the charcoal canister.
  电磁柱塞拉下通气阀, 堵住通向活性碳罐的通路.
  
• With the car upside - down, the ball forces the plunger to seat against the guide plate.
  当汽车倾倒时, 滚珠迫使柱塞落在支承板上.
  
• The steel balls...were trapped in grooves until you depressed a...plunger.
  来自C. Milne
• Take Standard Plunger, a manufacturer of hydraulic elevators with an inauspicious name.
  来自WSJ
• Red was known as a plunger he had once been a professional poker player.
  来自NEWYORKER