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Terms for subject General containing 观测系统 | all forms | in specified order only
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人造卫星和导弹观测系统satellite and missile observation
〔人造〕卫星气象观测结果收集系统satellite collection of meteorological observations
对敌轰炸无线电观测系统将轰炸机引导到目标的系统observed bombing observer bomber of enemy