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1686+ standards in database
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调频、电视广播接收机用300Ω/75Ω 平衡-不平衡阻抗变换器
300Ω/75Ω balun for FM and TV broadcast receiver
模拟微波接力通信系统8 GHz微波通信设备总技术条件
General specifications for 8GHz band microwave communication equipment used in analogue radio-relay systems
地面无线电接力系统所用设备的测量方法 第三部分:仿真系统的测量 第六节:声音节目传输的测量
Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3:Simulated systems--Section six--Measurements for sound-programme transmission
地面无线电接力系统所用设备的测量方法 第三部分:仿真系统的测量 第二节:基带测量
Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3:Simulated systems--Section two--Measurements in the baseband
反射式灰度级测试图
The reflection grayscale test chart
高保真传声器最低性能要求
Minimum performance requirements on high fidelity microphones
直接辐射式扬声器尺寸
Dimensions of director radiator loudspeaker
彩色电视广播接收机可靠性验证试验 贝叶斯方法
Bayes method of reliability demonstration testing for colour broadcasting TV receiver
中波和短波调幅广播发射机基本参数
Basic performance parameters for medium wave and shortwave AM broadcasting transmitters
收音机、录音机听音试验
Listening tests on radio receiver and/or tape recorder
中波和短波广播发射机测量方法
Methods of measurement for broadcasting transmitters used in MW or SW band
电视广播接收机主观试验评价方法
Subjective tests and assessment for broadcasting television receivers
声音广播接收机基本参数
Basic parameters for sound broadcasting receivers
船用雷达技术要求和使用要求 测试方法和要求的测试结果
Shipborne radar，technical and operation requirements--Method of testing and required test results
无线传声器系统测量方法
Methods of measurement for wireless microphonesystems
导航术语
Terminology for navigation
用红外辐射的声传输
Sound transmission using infrared radiation
用于60～108 kHz基群电路的48 kbit/s数据传输的调制解调器
Modems for date transmission at 48 kilobits per second using 60～108 kHz group band circuits
用于60～108 kHz基群电路的宽带调制解调器的测量方法
Methods of measurement of modems for wide band using 60～108 kHz group band circuits
长距离地面模拟微波接力系统 彩色电视解调机 (一路电视一路伴音) 技术条件
Specifications for colour TV demodulation equipment (1 TV+1 sound program) used in long-haul terres-trial analog radio-relay systems