逆流泵送机械密封 performances of upstream pumping mechanical face seal
可逆叶片轴流泵 axial flow pump with reversible blades ; propeller pump with reversible blades
逆流油泵营地 Undertow Oil Pump Camp
真空泵油逆流 [机] back-streaming of pump fluid
可逆叶片轴流泵联轴器 axial flow pump coupling with reversible blades
可逆流体转换泵 reversed flow diverter pump
逆流游泳用水泵 countercurrent swimming pump
可逆流体换向装置是决定气动式脉冲液体射流泵的流体输送效率的关键组成部件。
The Reverse Flow Diverter (RFD) is one of the key components affecting the liquid - delivered efficiency.
该文介绍了油封机械泵的抽速与入口压力的关系、泵抽气效率下降的原因，指出泵入口管道的流导和油蒸汽逆流是造成泵抽速下降的主要原因。
Discusses the relationship between pumping speed and inlet pressure of an oil-sealed mechanical pump and the reason why its pumping efficiency drops down.
患者表现出受pH值与胃食管反流症状的研究或手术后应被视为与质子泵抑制剂的长期逆流。
Patients with demonstrated reflux by pH study or with reflux symptoms after surgery should be treated long-term with proton pump inhibitors.
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