【英语阅读】喜讯，世界上最高的海拔的公路通车了！世界上海拔最高的公路隧道周五开放通车，这条隧道位于西藏自治区，海拔4750米。（五一将至，祝你假期快乐。关注本站，每天阅读时事，了解世界，增进知识）
The world's highest highway tunnel was open to traffic on Friday at an altitude of over 4,750 meters above sea level in southwest China's Tibet Autonomous Region.
世界上最高的公路隧道于周五在中国西南部西藏自治区海拔4750米的高度通车。The two-way tunnel is over 5.7 km long, which is a part of the 400-km highway linking the regional capital of Lhasa with Nyingchi in the southeast of Tibet.
双向隧道长5.7公里，是连接拉萨地区首府和西藏东南部林芝的400公里高速公路的一部分。隧道的建设始于2015年，位于5,018米高的米拉山上，并于周一完工，缩短了18公里的山脉距离，缩短到5.7公里。
Gong Bin, project manager of Mila Mountain Tunnel of the China Railway No. 2 Bureau, said that more than 10 technological breakthroughs have been made in the course of the construction, such as improving the survey accuracy of mountain tunnels in extremely cold weather and at high altitudes.中铁二局米拉山隧道项目经理龚斌表示，在施工过程中已经取得了十多项技术突破，如提高极寒天气下山岭隧道的测量精度。高海拔。
He said in addition to coldness and lack of oxygen, over 2,000 construction workers faced the challenges of the inconvenience of transporting living and construction materials to the site.他说，除了寒冷和缺氧之外，还有2,000多名建筑工人面临着将生活和建筑材料运到现场所带来的不便。
"We have worked here for more than four years and lived in makeshift houses at the entrance to the tunnel," said Xu Yong, Party chief of the construction project.“我们在这里工作了四年多，住在隧道入口处的临时房屋里，”建筑项目党长徐勇说。
He said the highway is an important channel to the eastern part of Tibet, which can help boost tourism, industrial development and bring traffic convenience to local people.他说，高速公路是通往西藏东部的重要通道，有助于促进旅游业，工业发展，为当地人民带来交通便利。
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