... 正吸入压头 positive suction head 净正吸入压头 net positive suction head ; NPSH 需用净正吸入压头 required net positive suction head ...
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短语
净正吸入压头
net positive suction head
;
NPSH
需用净正吸入压头
required net positive suction head
有效净正吸入压头
[机]
available net positive suction head
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