西部干线
西部干线-
毛乌素沙地飞播后植被演替规律研究我国西部干线飞机颠簸分布规律分析
Study on the Succession of Vegetation after Aerial Seeding in Mu Us Sandy Land ; Airplane Turbulence Distribution Analysis of Western Trunk Air Routes in China
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基于中国西部干线公路与高速公路建设融资模式的差异性分析，构建西部干线公路公路建设融资资本的优化数学模型。
Based on the analysis of differences between financing options for highways and freeways in the western China , the optimum mathematical model of financing for the highways is created .