electromagnetic countermeasure

例句：

1. 1. The military developed a sophisticated electromagnetic countermeasure system to defend against enemy electronic warfare.
   军队开发了一种复杂的电磁对抗系统，以抵御敌方的电子战。
2. 2.In the battle, the enemy launched a series of electromagnetic attacks that our defenses could not withstand.
   战斗中，敌军发动了一系列我们无法抵挡的电磁攻击。
3. 3. The countermeasures were designed to disrupt the enemy's communication and navigation systems.
   这些措施旨在破坏敌人的通信和导航系统。