The application of personnel: managers, security prosecutors, ventilation management, mechanical and electrical maintenance personnel and the underground movement of workers.

适用人员：管理干部、安全检察人员、通风管理人员、机电维修人员及井下流动作业人员。

youdao

Division I has a professional mechanical and electrical installation, maintenance and design personnel.

我司拥有专业的机电安装、维修和设计人员。

youdao

Mechanical and electrical equipment installation and maintenance.

机电设备安装维修。

youdao

The company, which provided mechanical and electrical services such as air conditioning, boiler maintenance and heating installation, said it was closing with immediate effect because of the current economic climate.

BBC: Aircraft seat company cuts jobs