运行技术知识竞赛
已知某级c0=0m/s,w1=158m/s,c1=293m/s,w2=157m/s,c2=62.5m/s,轴向排汽(a2=900),喷嘴和动叶速度系数分别为Φ=0.95,Φ=0.88。计算级的平均反动度Ωm。
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