voice-frequency carrier telegraph terminal
音频载波电报终端机
voice carrier telegraph testing equipment
音频载波电报测试仪
filter ,carrier-current, for line telegraphic or telephonic systems
载波滤波器,有线电报或电话系统用
Power line carrier technology in mine haulage alarm system's application
电力线载波技术在矿山运输报警系统中的应用
colour subcarrier trap
彩色副载波陷波电路
high -frequency channel
高频电路, 载波电话通路
power line carrier telephone terminal
电力线载波电话终端机
prediction of ionospheric radio wave propagation
电离层电波传播预报
voice-frequency carrier teletype
音频载波电传打字机
frequency modulation noise level on carrier
载波的调频噪声电平
carrier telephone multiplexing equipment
载波电话多路复用设备
digital carrier telephone terminal machine
数字载波电话终端机
phase comparison carrier relay
相位比较式载波继电器
coaxial-cable carrier communication system
同轴电缆载波通信系统
submarine cable carrier communication system
海底电缆载波通信系统
directional comparison carrier relay
方向比较载波继电器
Developing of the Intelligent Power Line Carrier Wave Blocking Wave and Filters Testing Device;
智能化电力线载波阻波器滤波器测试仪的研制
valve 3-channel carrier telephone terminal equipment
三路电子管载波电话终端机
