诺斯罗普·格鲁门公司与明尼苏达大学获得一项协作导航算法初步设计的研究开发合同。
Northrop Grumman, in partnership with the University of Minnesota, was awarded a research and development contract for the preliminary design of collaborative navigation algorithms.
该方法尤其适用于公路或铁路的方案研究阶段及初步设计阶段的路基防护及排水工程数量的统计。
It is suitable to calculate the quantities of subgrade protection and drainage project, especially in the draft design and predesign phase of the highway or railway.
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