deactivation [di:æktɪ'veɪʃən]

例句:

• There can be important consequences of activation or deactivation.
  在这里可能有活化或钝化的重要结果.
  
• The deactivation of a device, program, or system.
  使一个设备 、 程序或系统停止工作.
  
• This process is endothermic with rapid carbon deposition and deactivation of the catalyst.
  此过程是吸热的,同时很快发生碳积沉并使催化剂活性减低.
  
• How could you prove that the frontal deactivation really did make the improvisers innovate?
  来自WSJ