无功功率补偿是电力系统中的一项重要工程。
The reactive power compensation is an important project in the power system.
无功补偿是电力系统经济运行的一个重要问题。
The reactive power compensation is an important problem of electric power system "s economical operation."
无功补偿是电力系统经济运行的一个重要问题。
The reactive power compensation is an important problem of electric power system "s economical operation."
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