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Beidou road network map series: National Atlas of the road network and road mileage.
北斗公路网地图系列：国家公路网及公路里程地图集。
youdao
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Road network in large area is able to map in a short period of time.
能够在较短的时间内将大面积区域的现状路网成图。
youdao
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Road network in large area is able to map in a short period of time.
能够在较短的时间内将大面积区域的现状路网成图。
youdao