【直播：世界首条特高压下穿长江隧道贯通】 The world’s first ultra-high voltage (UHV) transmission tunnel across the Yangtze River will be completed on Tuesday. What are the technical difficulties of the world's first attempt at this kind of structure? http://t.cn/RkiHDID . _新浪新闻

CGTN 18-08-21 08:24

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【直播：世界首条特高压下穿长江隧道贯通】 The world’s first ultra-high voltage (UHV) transmission tunnel across the Yangtze River will be completed on Tuesday. What are the technical difficulties of the world's first attempt at this kind of structure? http://t.cn/RkiHDID .