standard relative luminous efficiency curve 标准相对光效曲线
relative efficiency ratio curve 相对效率曲线
relative luminous efficiency curve 相对亮度效率曲线
Adopting the definition of indicated relative internal efficiency, the concept of equivalent condition curve was proposed and corresponding turbine heat rate model was derived.
采用指示性相对内效率的定义，提出当量汽态线的概念，并据此推导出相应的汽轮机热耗计算模型。
The paper introduces the approximate formula for the head curve of pump, the pipe resistance curve of system and the efficiency of pump with relative value.
介绍了扬程特性、管阻特性和水泵效率的相对值近似表达式。
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