冲动级动叶入口压力为P1,出口压力为P2,则P1和P2有()关系。A、P1<P2B、P1>P2C、P1=P2D、P1=0.5P2
冲动级动叶入口压力为P1,出口压力为P2,则P1和P2有()关系。
- A、P1<P2
- B、P1>P2
- C、P1=P2
- D、P1=0.5P2
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