Browse Standards
1653+ standards in database
1653 result(s) found
电信术语 电话
Terminology for telecommunications--Telecommunications using telephone
电信术语 使用离散信号的电信方式、电报、传真和数据通信
Terminology fortelecommunications--Telecommunications using discrete signals， telegraphy， facsimile and data communication
同步数字体系的比特率
Synchronous digital hierarchy bit rates
电信术语 光纤通信
Terminology for telecommnications--Optical communication
电信术语 传输
Terminology for telecommunications--Telecommnications using transmission
电信术语 传输线与波导
Terminology for telecommunications--Transmission lines and waveguides
电信术语 无线电波传播
Terminology for telecommunications--Telecommunications using radio wave propagation
电信术语 振荡、信号和相关器件
Terminology for telecommunications--Telecommunications using oscillations，signals and related devices
电信术语 空间无线电通信
Terminology for telecommunications--Telecommunication using space radio communication
电信术语 交换技术
Terminology for telecommunications--Switching
电信术语 可靠性、可维护性和业务质量
Terminology for telecommunications--Dependability and quality of service
程控模拟用户自动电话交换机通用技术条件
Generic specification for stored program control analogue private automatic branch telephone exchange system
光缆通信系统传输性能测试方法
The measurement methods of transmission performances on optical fiber cable communication systems
电信术语 电信、信道和网
Terminology for telecommunications--Telecommunications，channels and networks
号筒扬声器测量方法
Methods of measurement for horn loudspeakers
彩色电视广播覆盖网技术规定
Technical specifications for coverage networks of colour TV broadcasting
无线电业务要求的信号/干扰保护比和最小可用场强
Protection ratios and minimum usable field strengths required in thd radio services
广播录音机抖晃测量方法
Measuring methods for wow and flutter of broadcast tape recorders
卫星广播业务和地面业务间的频率共用 11.7～12.2 GHz和12.5～12.75 GHz卫星广播业务(电视)和地面广播业务(电视)及地面无线电中继系统间的频率共用
Frequencysharing between the broadcasting-satellite services and terrestrial services--Frequency sharing between the broadcasting-satellite service(television)in one side and terrestrial broadcasting services(television)and terrestrial radio-relay system
卫星广播业务和地面业务间的频率共用 620～790 MHz卫星广播业务(电视)和地面广播业务(电视)间的频率共用
Frequency sharing between the broadcasting-satellite service and terrestrial services--Frequency sharing between the broadcasting-satellite service (television) and terrestrial broadcasting services(television) in frequency band 620～790MHz