A.5.59% B.1.25% C.0.5% D.7.26%
A.二倍一階臨界轉(zhuǎn)速 B.一階臨界轉(zhuǎn)速 C.渦動轉(zhuǎn)速 D.額定轉(zhuǎn)速
A.85 B.90 C.105 D.120