suc·tion /ˈsʌkʃən/
  吸,吸入,吸上,吸引,吸力
  suc·tion /ˈsəkʃən/ 名詞
  抽吸,吸取,吸力,吸引,吸出,進氣,吸氣,吸水管,吸,吸出
  Suc·tion n.  The act or process of sucking; the act of drawing, as fluids, by exhausting the air.
  Suction chamber, the chamber of a pump into which the suction pipe delivers.
  Suction pipe, Suction valve, the induction pipe, and induction valve, of a pump, respectively.
  Suction pump, the common pump, in which the water is raised into the barrel by atmospheric pressure.  See Illust. of Pump.
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  suction
       n 1: a force over an area produced by a pressure difference
       2: the act of sucking [syn: sucking, suck]
       v 1: remove or draw away by the force of suction; "the doctors
            had to suction the water from the patient's lungs"
       2: empty or clean (a body cavity) by the force of suction;
          "suction the uterus in an abortion"