Voltage is an important index of quality of power supply.

电压是衡量电能质量的一项重要指标.

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And the dependability that the quality of power facilities decided to aircrew moves greatly and economy.

而电力设备的质量在很大程度上决定了机组运行的可靠性和经济性.

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Voltage magnitude is one of the major factors that determine the quality of power supply.

电压质量对电网稳定及电力设备安全运行有着直接的影响.

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