500 kV unattended substation
automatic control certified for unattended engine room-open sea
automatic control system for unattended engine room
Automatic Control System for Unattended Engineroom
Automatic Control System for Unattended Engineroom Certificate
惯性导航系统
惯导系统
《无人机舱自动控制系统许可证》
开放图形库
automatic control-system certified for unattended engine room
无人机舱自动控制系统核准的无人机舱自动控制系统符号
conventional unattended substation
standby unattended time
stand-by unattended time
UAN Unattended Answering Accessory
UMCS Unattended Multipoint Communication Station
Unattended
无人值守
无人管理的
无人值班
无人当值
自动操作
无人化
无人式
没人照顾的
无陪伴的
没有同伴
没人出席的
无人值班、少人值守
停机时间
unattended automatic exchange
unattended communication
Unattended communication room