Personnel must be thoroughly familiar with all warnings and procedures for installation, operation, maintenanceandrepair contained in these operating instructions.
工作人员必须完全熟悉本手册所陈述的安装,运行,维护及维修的程序和相关注意事项。
2
Refrigerating systems and heat pumps - Safety and environmental requirements - Part 4: operation, maintenance, repairand recovery.
制冷设备和热泵。安全和环境要求。第4部分:操作、维护、修理和恢复。
3
Good knowledge and hand on skills of electronics system operation, repairandmaintenance.