内功率：在理想功率中，扣除内部所有能量损失所消耗的功率。（理想功率：在不计任何损失的情况下，蒸汽在汽轮机内做等熵膨胀时单位时间内所做得功。）
介绍了一种音频范围内功率测量的新方法。
A new method for power measurement of audio frequencies is introduced.
配置国内功率大，效率高，动力强劲的C490浙江新柴柴油机。
Configuration of domestic big power, high efficiency and powerful C490 zhejiang new wood diesel engine.
汽轮机调节系统的基本任务是调整汽轮机的内功率，使之与外界负荷的变化相适应，是整台机组的神经中枢。
The basic task of the steam turbine's regulating system is to adjust the inner power of it, and make it to fit the change of external load. It is the nerve center of the whole machine unit.
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