已安装完毕，确保每个角落的警铃都安装妥当并处于正常工作状态。

已安装完毕，确保每个角落的警铃都安装妥当并处于正常工作状态。

Kết quả (Anh) 1:

Has been installed, ensure that every corner of alarms are properly installed and under normal working conditions.

Kết quả (Anh) 2:

It has been installed to ensure that every corner of the bell are properly installed and in good working order.

Kết quả (Anh) 3:

Have been installed, to ensure that every corner of the bell are properly installed and in normal working condition.