为削弱、破坏敌方电子设备和系统的使用效能，保护己方电子设备和系统正常发挥效能而采取的各种措施和行动electronic countermeasure

• 这种优势是各军种以各种手段进行侦察和电子对抗的结果。

  This kind of superiority is the result of various kinds of reconnaissance and electronic countermeasures carried out by various forces.

• 教练员将现代侦察、隐形技术、电子对抗等新的战场要素纳入教学课题。

  The coach is including new battlefield elements such as modern reconnaissance, stealth technology, and electronic warfare in the course.