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passive detection
comp., net. 无源检测
el. 无源检［探］测
mil., air.def. 无源探测
tech. 无源检波; 被动探测
passive detection: 43 phrases in 13 subjects
Air defense8
Automobiles2
Aviation2
Computer networks2
Earth sciences3
Electronics7
General2
Geophysics1
Oil / petroleum1
Radio2
Space10
Technology2
United Nations1

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