VFCT Voice Frequency Carrier Telegraph

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