谨代表要塞保全系统全体，对最近贵府家用保全系统的故障深表歉意。
On behalf of everyone at Fortress security system, I am very sorry for the recent breakdown of you home security system.
以专业保全为主要目的，了解完整的保养体系、建立设备管理指标、掌握零故障方法，以及如何处理可能存在的问题；
Aims at Professional Maintenance, understanding the whole maintenance system, establishing the equipment management indicator, master zero fault method, and how to deal with the existing problems;
应用推荐