MDF线架告警
MDF(Main Distribution Frame) alarm
贝雷架架设法
bailey truss erection method
本地数字配线架
LDDF Local Digital Distribution Frame
本地数字配线架系统
LDDS Local Digital Distribution Frame System
不封航架线
Installation of wires and conductors without navigation interruption
超群配线架
supergroup distribution frame
Bottleneck detection
大跨越架线
stringing of large crossing