carrier telephone multiplexing equipment
载波电话多路复用设备
SHF multiplex telephone facility
超高频多路复用电话设备
transistorized 60-channel balanced cable carrier telephone system
晶体管60平衡电缆路载波电话设备
Performance requirements for 120-channel submarine coaxial cable carrier telephone equipment
GB/T13431-1992120路海底同轴电缆载波电话设备技术要求
Performance requirements for 24-channel submarine coaxial cable carrier telephone equipment
GB/T13430-199224路海底同轴电缆载波电话设备技术要求
Measurement methods for 120-channel submarine coaxial cable carrier telephone equipment
GB/T13429-1992120路海底同轴电缆载波电话设备测试方法
Measurement for 24-channels submarine coaxial cable carrier telephone equipment
GB/T13425-199224路海底同轴电缆载波电话设备测试方法
Specification for 12-channel transistorized carrier telephone equipment on an open-wire pair
GB/T5446-1985明线12路晶体管载波电话设备技术要求
Requirements for 3-channel carrier telephone equipment on an open-wire pair
GB/T6555-1986明线3路载波电话设备技术要求
microwave relay system for telephony using frequency-division multiplex
频分多路复用电话微波中继系统
microwave relay system for telephony using time-division multiplex
时分多路复用电话微波中继系统
Specifications for the local subscriber loop carrier equipment
GB/T13136-1991市话用户环路载波设备技术条件
The test methods for 60-channel symmetrical cable carrier telephone equipment
GB/T4770.3-1984对称电缆60路载波电话设备主要性能的测试方法
high -frequency channel
高频电路, 载波电话通路
Specification for HF 12-channel transistorized carrier telephone equipment on an open-wire pair
GB/T5445-1985明线高12路晶体管载波电话设备技术要求
The test methods for 12-channel open wire carrier telephone equipment
GB/T4770.2-1984明线12路载波电话设备主要性能的测试方法
The test methods for 3-channel open wire carrier telephone equipment
GB/T4770.1-1984明线三路载波电话设备主要性能的测试方法
Products packaging of carrier telephone equipment
GB/T13038-1991载波电话设备包装