单项选择题
A.泵轮 B.导轮 C.涡轮 D.叶轮
A.进气0.28,排气0.58 B.进气0.36,排气0.69 C.进气0.20~0.30,排气0.30~0.35 D.进气0.30~0.35,排气0.35~0.40
A.进气0.28,排气0.58 B.进气0.36,排气0.69 C.进气0.25~0.30,排气0.30~0.35 D.进气0.30~0.35,排气0.35~0.40
A.5.79 B.5.79±0.03 C.7.72 D.7.72±0.03
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