泵的净吸压头 net pump suction head

净正吸入压头 net positive suction head ; NPSH

净压吸头 net positive suction head

净正吸上压头 NPSH ; net positive suction head

需用净正吸入压头 required net positive suction head

必需净正吸上压头 net positive suction head required

净正压吸水头 Net Positive Suction Head ; NPSH

水泵的净正压吸水头 Net Positive Suction Head ; NPSH

净吸引压头 NPSH