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photoelectricity voltage transformer
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photoelectricity voltage transformer
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电压互感器
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photoelectricity voltage transformer
光电式电压互感器
通过光电信号的转换将电网中的一次高压侧的电压信号变换传递为二次低压侧的低电压信号,进而为二次计量、继电保护等自动装置提供标准化的数字电压信号,同时满足电气隔离,确保人身和电器的安全的电压互感器。又称光学电压互感器。
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Bamboo Slips of Warring States Period and Qin Dynasty Unearthed from Wangjiatai
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Bamboo Slips of Western Han Dynasty Unearthed from Zhangjiashan
bamboo slips unearthed from the Chu tomb at Guodian
bamboo slips unearthed from the Chu tombs at Baoshan
bamboo slips unearthed from the Chu tombs at Geling in Xincai, Henan Province
bamboo slips unearthed from the Chu tombs at Wangshan
bamboo spine
bamboo spittlebug
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bamboo toothpick shaping machine
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bamboo weaving of Lhoba nationality
bamboo witches broom
Bamboo with Double Line by Zhang Xun
Bamboo Woods Carden in Jinan
bamboo work
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bambuco
Bamei mutton sheep
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