论文简介:
Electrical construction including two strong design elements include : a part of the transformation and distribution system. power and lighting systems, mine grounding system. In general, building key changes include : high-voltage and low-voltage distribution systems systems, transformers, standby power system. power systems including power distribution and control; indoor and outdoor lighting system include all types of lighting; Lightning Protection System, including mine waves penetrated, lightning sensors, grounded, equipotential bonding and local equipotential bonding. Auxiliary equipotential bonding and so on. In such a short span of 20 years
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xiaoxasd8129dsjadw
沙发
怎么才能下载啊,这个真急用啊,哎,真正有用的东西太难找啦
2014-01-14 19:15:14
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mzcc2000
板凳
感谢分享啊
2013-12-22 19:33:22
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