net positive suction head 净正吸入压头 ; [力] 汽蚀余量 ; 净吸真空高度 ; 净吸入头

net positive suction height 净压吸高 ; 净有效吸水高

required net positive suction head 需用净正吸入压头 ; 需求吸水净扬程

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

NPSH Net positive suction head 净吸入头 ; 净正吸入压头

net positive suction head requirement 必须的汽蚀余量

critical net positive suction head 临界净正抽吸压头

available net positive suction head 有效净压吸入压头