From Robert E. Peary's expedition to the North Pole to the discovery of the Titanic, National Geographic highlights a century of exploration on its centennial cover.
国家地理100年特刊——罗伯特e皮尔里(Robert e . Peary)北极探险,发现泰坦尼克号等百年以来的探索成就。
With an introduction of the basic principles of geographic information system (GIS), the paper discussed its application in petroleum exploration and development.
本文在介绍地理信息系统(G IS)基本原理的基础上,论述了它在石油勘探与开发中的应用。
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