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Terms for subject United States containing 子系 | all forms | in specified order only
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原子能探测系统atomic energy detection system
双子星飞船发射数据系统Gemini launch data system
双子星飞船环境控制系统Gemini environmental control system
子午仪卫星导航系统Transit navigation system
微电子机械系统皮卫星检查器Microelectromechanical Systems Picosat Inspector
海军电子系统司令部Naval Electronics Systems Command
电子仪器和航空航天系统技术会议Electronics and Aerospace Systems Technical Convention
航天飞机电子设备测试系统shuttle avionics test system
雷声电子系统公司Raytheon Electronic Systems