Wideband communications  宽带通信

European wideband communications system  欧洲宽带通讯系统

line communications  有线通信

Low-voltage power line communications  低压电力线通信

platterpower line communications  电力线通信

Power Line Communications  电力线载波通信; 电力线通信; 电力线通讯系统

Power Line Communications Systems  电力线通信系统

Power-line Communications  电力线通信; 电力线载波通信

microcoded communications line adapter  微编码通讯线路配接器

on-line communications adapter  联机通信配接器

Double line-line voltage control  双电压控制

line-line extreme distance  线-线极限距离

line-line topological relation in traffic network  交通网络线-线拓扑关系

on-line line loss  在线线损

loss-free line (=lossless line =lossless transmission line)  无耗损线

SDSL Single-Line Digital Subscriber Line，Single-Line DSL  单绞线数字用户系统; 对称数字用户回路

Optical communications Mobile communications  光通信

10-line to 4-line BCD encoder  十进制至8421码编码器

A line used as both sterile and maintaining line  一系两用