“frequency modulation and control”的概念、定义、翻译、参考文献-科学参考

单词	frequency modulation and control
释义	frequency modulation and control Encyclopedia 工学电能质量释 frequency modulation and control频率调整调整电力系统的频率，使其变化不超过规定的允许范围，以保证电能质量。
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