voice-frequency carrier telegraph terminal
音頻載波電報(bào)終端機(jī)
voice carrier telegraph testing equipment
音頻載波電報(bào)測(cè)試儀
filter ,carrier-current, for line telegraphic or telephonic systems
載波濾波器,有線電報(bào)或電話系統(tǒng)用
Power line carrier technology in mine haulage alarm system's application
電力線載波技術(shù)在礦山運(yùn)輸報(bào)警系統(tǒng)中的應(yīng)用
colour subcarrier trap
彩色副載波陷波電路
high -frequency channel
高頻電路, 載波電話通路
power line carrier telephone terminal
電力線載波電話終端機(jī)
prediction of ionospheric radio wave propagation
電離層電波傳播預(yù)報(bào)
voice-frequency carrier teletype
音頻載波電傳打字機(jī)
frequency modulation noise level on carrier
載波的調(diào)頻噪聲電平
carrier telephone multiplexing equipment
載波電話多路復(fù)用設(shè)備
digital carrier telephone terminal machine
數(shù)字載波電話終端機(jī)
phase comparison carrier relay
相位比較式載波繼電器
coaxial-cable carrier communication system
同軸電纜載波通信系統(tǒng)
submarine cable carrier communication system
海底電纜載波通信系統(tǒng)
directional comparison carrier relay
方向比較載波繼電器
Developing of the Intelligent Power Line Carrier Wave Blocking Wave and Filters Testing Device;
智能化電力線載波阻波器濾波器測(cè)試儀的研制
valve 3-channel carrier telephone terminal equipment
三路電子管載波電話終端機(jī)
