... frequency modulation 频率调制，调频 frequency modulation characteristic 调频特性[曲线] frequency modulation motor 频率调制电动机，调频电动机 ...
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由一次调频决定的电网静态调频特性，则是电网频率稳定性的基础。
The static frequency modulation characteristic of electric network is the foundation of frequency stability of the electric network that determined by frequency modulation.
通过比较分析几种汽轮机调节系统的一次调频动态特性，证明采用一次调频动态特性概念可以本质、全面地反映汽轮机调节系统的一次调频特性。
Through the analysis of several kind of turbo-generator control system, the new concept is proved to be an overall description of primary frequency regulation.
本文研究正弦加噪声复合调频雷达信号的相关特性，并指出这种体制具有独特的抗干扰性能。
Correlation properties of sine plus noise compound FM radar signal are studied and the special anti-interference performance of the radar system is presented.
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