pump-action

英 美
  • adj.拉推枪栓式装置的
  • pumping n.抽吸;脉动动词pump的现在分词.
  • wells n.井;水源名词well的复数形式.Wells.n.威尔斯(姓氏)
名词 pump action:
  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