净有效吸水头净正吸上压头净正吸入压头汽蚀余量
Net effective suction head net positive suction head net positive suction head net positive suction head net positive suction head net net positive suction head Net net positive suction head Net net positive suction head Net net positive suction head Net net positive suction head
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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