抽水

• The source and sink is mainly pumping well
  源汇项主要是抽水井。
• Aluminium alloy suction coupling type c ; nominal pressure 16
  标称压力为16 c型抽水铝合金联接器
• Every evening we pump water from a well
  每天晚上我们从井里抽水。
• Here is an old - fashioned pump for drawing water from a well
  这里有一个旧式水泵可从井里抽水。
• Pump supply and installation of pumpsets and associated pipework
  供应及装置抽水系统及相连的水管工程
• Machinery including pumping equipment
  机器（包括抽水设备）
• 2 . draining of waterfowl collection
  2 .水禽养殖池抽水工程
• Research on a novel control method of a hf link dc ac converter
  励磁控制下抽水蓄能电机静止变频器起动研究
• The seepage stability analysis for the embankment of a hydropower station
  某抽水蓄能电站围堰渗流稳定性分析
• It ' s no use pumping a dry well
  枯井抽水,徒劳无功