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从兼顾美国经济利益和国家安全目标、GPS及其增强系统的管理、国家安全及对外政策四个方面综合考察了美国对其GPS所采取的最新国策。
From the viewpoints of taking into account U.S. economic interests and national security goals, GPS and its enhanced system management, national security and foreign policy, the United States has taken a comprehensive examination of the latest U.S. national policy on its GPS.