Establish and maintain a complete set of documented procedures for electrical system and support relative electrical systemroutine maintenance activities.
建立并维护电气设备维修程序，并支持相关电气系统的日常维修活动。
2
The index case was identified through routine yellow fever surveillance system.
指示病例是通过常规黄热病监测系统发现的。
3
This case was detected through the Ministry's routine influenza surveillance system.