decommission
verb [ T ] uk/ˌdiː.kəˈmɪʃ.ən/ us/ˌdiː.kəˈmɪʃ.ən/
关闭，停止使用（设备或武器）
to take equipment or weapons out of use
The government has decided to decommission two battleships. 政府决定让两艘军舰退役。
It would cost $300 million to decommission the nuclear installation. 关闭这个核设施需耗费3亿美元。