Browse Standards
1653+ standards in database
1653 result(s) found
透射式电视灰度测试图 A 型
Grayscale test chart A of transparencies for television
透射式电视高分辨率测试图
High resolution test chart of transparencies for television
透射式电视均匀性测试图
Quality of distribution test chart of transparencies for television
透射式电视重合测试图 B型
Registration test chart B of transparencies for television
透射式电视重合测试图 A型
Registration test chart A of transparencies for television
透射式电视调制度测试图
Amplitude response test chart of transparenciesfor television
透射式电视高频特性测试图
High-frequency test chart of transparencies for television
地面无线电接力系统所用设备的测量方法 第一部分:分系统和仿真系统通用的测量 第三节:中频范围的测量
Methods of measurement for equipment used in terrestrial radio-relay systems--Part 1:Measurements common to sub-systems and simulated systems--Section three--Measurements in the intermediate-frequency range
地面无线电接力系统所用设备的测量方法 第二部分:分系统的测量 第二节 天线和无源转向器的测量
Methods of measurement for equipment used in terrestrial radio-relay systems--Part 2:Measurements for sub-systems--Section two:measurements in the antennas and passive repeaters
通用硬同轴传输线及其法兰连接器总规范
General purpose rigid coaxial transmission lines and their associated flange connectors--Generic specification
插入式耳机的乳头状接头
Nipples for insert earphones
文件传真质量主观评定方法
Method for the subjective assessment of the quality of document facsimile
模拟节目信号
Simulated programme signal
电视发射机测量方法
Methods of measurement for television transmitters
陆地移动业务 (16k0F3E)所要求的同波道干扰标准
Co-channel interference standards required in the land mobile services (16k0F3E)
25～1000 MHz陆地移动通信网通过用户线接入公用通信网的接口参数
Interface parameters of the 25 to 1000MHz land mobile telecommunication network connecting to public telecommunication network through subscriber lines
电话自动交换网铃流和信号音技术指标测试方法
The test methods for the technical specifications of ringing and tone for automatic telephone switchingnetwork
电话自动交换网带内单频脉冲线路信号技术指标测试方法
The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic telephone switching network
电话自动交换网用户信号技术指标测试方法
The test methods for the technical specifications of subscriber line signalling for automatic telephone switching network
广播用立体声录音机
Stereophonic broadcast magnetic recorder