他们发现销售过抽吸设备的人是最适合销售替换零件的。
They have found that the man who sells the pumps is the best at selling the replacement parts.
本发明涉及一种双圆锥设备，其产生了增强的抽吸、压力放大和降低的噪音。
The present invention deals with a double-cone device that produces enhanced suction, pressure amplification and reduced noise.
一种针抽吸活组织检查设备(20)，包括注射器(28)、控制注射器筒(30)内真空的阀门连接器(25)以及防回流头部。
A needle aspiration biopsy device (20) includes a syringe (28), a valve coupler (25) for controlling a vacuum in the syringe barrel (30), and an anti-reflux head.
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