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Radio
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外
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单信号超
外
差法
single signal super-heterodyne
外
差
法
heterodyne
外
部空腔谐振式反射速调管
external cavity type of reflex klystron
标准型可控
外
差振荡器
standard controlled heterodyne oscillator
高分辨能力的红
外
线探测器
high resolution infrared radiation sounder
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