dismantled

/dɪsˈmæntəl/
~ sth to take apart a machine or structure so that it is in separate pieces 拆开，拆卸（机器或结构）
I had to dismantle the engine in order to repair it.
我得把发动机拆开来修理。
The steel mill was dismantled piece by piece.
钢厂已经一块块拆散了。