With implication of the strategy of the development of West China, the construction of the highways (especially express highways) has become a priority, which could drive the economic of the West China.
随着国家西部大开发战略的实施，作为带动西部经济发展的交通运输工程(特别是高速公路)已得到优先发展。
参考来源 - 基于范例推理的黄土高边坡稳定性评价方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
But the existing automation trickling irrigation technology will have higher cost, if using in express highways.
但现有的自动化滴灌技术如果用于高速公路，成本较为高昂。
In the construction of express highways in mountainous areas in west China, landslide or failure of the mudstone slopes often occur.
中国西部山区泥岩地层中修建高速公路，泥岩边坡常发生变形失稳破坏。
Traffic has also shut down on most of the region's highways and express railways.
该地区大部分高速公路和高速铁路的交通也受到阻断。
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