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net positive suction head
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net positive suction head
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装置净正吸头
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net positive suction head
净正吸头
泵入口处(压力最低点)单位质量液体所具有的能量(静压能和动能)与输送液体在工作温度下的饱和蒸气压头之差。又称汽蚀余量。
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