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3:03
YouTube > T&D PowerSkills
Safety in Substations and Switchyards [PREVIEW]
YouTube · T&D PowerSkills · 3.3万次播放 · 2016年5月3日
7:12
YouTube > Tech Knowlogy
Energising a new 132/11 KV electrical Substation.
YouTube · Tech Knowlogy · 4736 次播放 · 2016年11月6日

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