deactivate /diːˈæktɪˌveɪt/ ( deactivating, deactivated, deactivates )

• 1. 

  V-T If someone deactivates an explosive device or an alarm, they make it harmless or impossible to operate. 解除(爆炸物或警报)

  例：

  Russia is deactivating some of its deadliest missiles.

  俄罗斯正在拆除其一些最具杀伤力的导弹。