随着企业之间竞争的剧烈，对于水轮发电机设计方法的完善和对水轮发电机设计效率的提高，成为企业立于不败之地的关键。
It is perfecting the design and increasing of design efficiency that is the critical factor whether the enterprise will win in the cut-throat competition.
西中电厂水轮发电机组设计不合理，存在水轮机效率与出力低，汽蚀严重等问题。
The design of hydraulic turbine generator set of Xizhong hydropower plant was not rational, existed the problems of the lower hydraulic turbine efficiency and the serious cavitation erosion.
水电站机组流量测量技术是原型水轮发电机组效率试验的关键技术。
The flow measuring technology of hydropower equipment is the key skill in prototype efficiency test.
水轮机的导叶端面间隙对整个水轮发电机组的效率指标及安全稳定运行有着重要影响。
It is highly important to the efficiency guide line of the whole hydraulic equipment unit and to the unit runs safety and steadily that the wicket gate end clearance of the hydraulic turbine.
论述了流速仪法测流及水轮发电机组现场效率试验的原理和计算方法。
This paper introduced the flow measuring principle of time-difference method of ultrasonic flow meter and the flow calculating method in flow measurement with velocity instrument.
论述了流速仪法测流及水轮发电机组现场效率试验的原理和计算方法。
This paper introduced the flow measuring principle of time-difference method of ultrasonic flow meter and the flow calculating method in flow measurement with velocity instrument.
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