洛克希德马丁公司的工程师们第二个天基红外系统(SBIRS-2)地球同步轨道卫星(全球环境展望2)的工作。
Lockheed Martin engineers work on the second Space Based Infrared System ( SBIRS ) geosynchronous orbit ( GEO-2 ) spacecraft at Lockheed Martin 's facilities in Sunnyvale , Calif.
全球环境的现状与展望
Present Situation and Outlook of Global Environment