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1653+ standards in database
1653 result(s) found
卫星广播业务和地面业务间的频率共用 卫星广播业务(电视)和地面业务间的频率共用导则
Frequency sharing between the broadcasting-satellite service and terrestrial services--Guide to frequency sharing between the broadcasting-satellite service (television) and terrestrial services
12 GHz频段卫星广播业务(BSS)及其馈线链路的规划参数
Planning parameters for broadcasting-satellite service(BSS) in the band 12 GHz and BSS feeder links
程控数字用户自动电话交换机通用技术条件
Generic specification for stored program control digital private automatic branch telephone exchange system
数据通信 使用V.24和X.24互换电路的DTE到DTE物理连接的接法
Data communication--Arrangements for DTE to DTE physical connection using V.24 and X.24 interchange circuits
信息处理系统 数据通信 高级数据链路控制规程 与X.25 LAPB兼容的DTE数据链路规程的描述
Information processing systems--Data communication--High-level data link control procedures--Description of the X.25 LAPB-compatible DTE data link procedures
公用陆地移动通信网(450 MHz频段)中移动台-基站-移动电话交换局之间的信令
Signalling between mobile station and base station and mobile services switching centre in public land mobile communication network at 450MHz band
号筒扬声器通用技术条件
General specification for horn loudspeakers
VHS盒式录像磁带
VHS video cassette tape
录像磁带性能测量方法
Measuring methods for video tape properties
精密硬同轴线及其精密连接器总规范
Rigid precision coaxial lines and their associated precision connectors， Generic specification of
电视中心视频系统和脉冲系统设备技术要求
Specifications of equipement for video and pulse system of TV centre
广播节目试听室技术要求
Technical requirements for listening rooms in broad-casting programme
视听、视频和电视设备及系统音频盒式系统
Audio-visual video and television equipment and systems--Audio cassette systems
中文图文电视广播规范
Chinese character system teletext broadcasting specification
纤维光学调制器 第二部分:分规范 波导电光调制器 (可供认证用)
Fiber optic modulators--Part 2:Sectional specification--Waveguide electrooptic modulators
高保真声频放大器最低性能要求
Minimum performance requirements for highfidelity audio amplifiers
语文学习系统通用技术条件
General specification for language learning systems
声系统设备互连的优选配接值
Preferred matching values for the interconnection of sound system components
模拟电唱盘通用技术条件
General specification for analog audio disk players
高保真电唱盘最低性能要求
Minimum performance requirements for high fidelity record players