pumping system

英 美
  • 泵激系统,抽水系统,泵浦系统
  • pumping n.抽吸;脉动动词pump的现在分词.
  • system n.系统;体系;身体;制度
    1. The Dutch windmills, which once numbered more than ten thousand, were replaced by the advent of new pumping systems.
      荷兰曾经拥有一万多台风车,现在它们已经被新的抽水系统替代。