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electronic countermeasures [ɪ,lek'trɔnɪk ,kauntə'meʒəz]
gen.	干扰敌人雷达信号用设备; 电子干扰对抗措施
el.	电子干扰
IT	电子对抗
space	电子干扰措施
electronic countermeasure
mil., air.def.	电子干扰; 电子对抗措施
tech.	电子对抗; 电子干扰措施
English thesaurus
electronic countermeasures [ɪ,lek'trɔnɪk ,kauntə'meʒəz]
avia., Canada	The division of electronic warfare involving actions taken to prevent or reduce an enemy’s effective use of the electromagnetic spectrum. ECMs include a electronic jamming; and b electronic deception.
mil., logist.	That division of electronic warfare involving actions taken to prevent or reduce an enemy's effective use of the electromagnetic spectrum through the use of electromagnetic energy. There are three subdivisions of electronic countermeasures: electronic jamming, electronic deception and electronic neutralization. (UKR/NATO)
electronic countermeasures ECMs [ɪ,lek'trɔnɪk ,kauntə'meʒəz]
mil., logist.	Portion of the electronic warfare including the actions undertaken in the electromagnetic spectrum to prevent it from being used efficiently or to reduce its efficient use by hostile forces. ECMs are divided into three categories: electronic jamming, deception, and suppression. FRA

electronic countermeasures: 130 phrases in 9 subjects

Air defense	35
Aviation	17
Computer networks	1
Electronics	26
General	3
Information technology	4
Shipbuilding	4
Space	35
Technology	5