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The magnetic type PT is the primary equipment for measuring the voltages in power system.
电磁式电压互感器是电力系统测量电压的主要装置。
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A power system is closely linked to the primary energy and the environment.
电力系统与能源和环境息息相关。
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A power system is closely linked to the primary energy and the environment.
电力系统与能源和环境息息相关。
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