The paper introduced the key technology of making thematic map symbols library that servered for Ming Great Wall resource investigation of Gansu.
介绍了甘肃省境内明长城专题地图符号的制作方法，对长城影像地图专题符号制作的关键技术进行探讨和研究；
Great Wall Scenic Area for the realization of non-polluting construction, construction personnel with mud Reversing Technology.
为实现长城风景区内无污染施工，施工人员采用泥浆反输技术。
Only the current auto show concept car, equipped with a hybrid engine the Great Wall, matching 6-speed automatic transmission and full-time all-wheel-drive technology!
本届车展亮相的仅是概念车型，搭载了长城混合动力发动机，匹配6速自动变速器并采用全时四驱技术！
Only the current auto show concept car, equipped with a hybrid engine the Great Wall, matching 6-speed automatic transmission and full-time all-wheel-drive technology!
本届车展亮相的仅是概念车型，搭载了长城混合动力发动机，匹配6速自动变速器并采用全时四驱技术！
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