更换现有计算机设备对于系统升级至关重要。

The ___replacement of existing computer equipment is essential for system upgrades.

他们安装了替换窗户以提高隔热性能。

They installed ___replacement windows to improve insulation.

降低更换损坏设备的成本是一个优先事项。

Reducing the cost for the ___replacement of broken equipment is a priority.