To prevent damage to grasslands and wetlands, the planners designed many special bridges. The total length of bridges built for this railway line in Tibet alone would reach 13 km.
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释义
为了不破坏草地、湿地等自然环境,设计中大量采用了以桥代路的方法,仅在西藏自治区境内就为此专门设置了累计13公里的桥梁。
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