a force over an area produced by a pressure difference
the act of sucking
remove or draw away by the force of suction;
"the doctors had to suction the water from the patient's lungs"
empty or clean (a body cavity) by the force of suction;
"suction the uterus in an abortion"
Flies' feet stick to surfaces by suction. 苍蝇的脚借吸力可附着于物体表面上。
Some pumps and all vacuum cleaners work by suction. 有些泵和所有真空吸尘器都是借吸力工作的。
Dirt and dust are drawn into a vacuum cleaner by suction. 污物和灰尘被吸入吸尘器。
Suction filter projects over the fluid level and sucks air. 抽吸过滤器凸出油漆表面，吸入空气。
We'll get the water out with a suction pump. 我们将用抽水机把水抽出来。
The doctors had to suction the water from the patient's lungs. 医生必须每天从这名患者肺部抽水。
In a newer method, an ultrasonic probe enters the cut in the cornea and high-speed vibrations break the lens into microscopic flecks that are then removed by suction. 有一种更先进的方法，把超声波探头伸到角膜切口内，高速的振动将晶状体变成微小的碎片，然后吸出这些碎片。