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四、试验结果和总的性 能分析 （一）流速特性 图 11表示供气流量 Vd与工作压力比π之间的关系。测量范围随转子圆周速度的增加而减小,测量设备仅受压力源的限制（压力变化太快,仪器难以同步）。这是本次试
IV. TEST RESULTS AND TOTAL PERFORMANCE ANALYSIS A. Flow rate characteristics Fig. 11 shows the relationship between the flow rate Vd of the gas supply and the working pressure ratio π. The measuring range decreases with increasing rotor peripheral speed, and the measuring equipment is limited only by the pressure source (the pressure changes too fast and the instrument is difficult to synchronize). This is the test