YS T 990 6-2014 Methods for chemical analysis of copper matte Part 6 Determination of lead content Atomic absorption spectrometry and NaEDTA titration method《冰铜.pdf

相关资源

YS T 649-2018 铜及铜合金挤制棒.pdf

YS T 679-2018 非本征半导体中少数载流子扩散长度的测试表面光电压法.pdf

YS T 662-2018 铜及铜合金挤制管.pdf

YS T 540.7-2018 钒化学分析方法第7部分：氧量的测定惰气熔融红外吸收法.pdf

YS T 988-2014 羧乙基锗倍半氧化物.pdf

YS T 540.5-2018 钒化学分析方法第5部分：杂质元素测定电感耦合等离子体原子发射光谱法.pdf

YS T 1288.3-2018 高纯锌化学分析方法第3部分：砷量的测定 氢化物发生-原子荧光光谱法.pdf

YS T 79-2018 硬质合金焊接刀片.pdf

YS T 584-2018 电极材料用铬、锆铜棒材.pdf

YS T 699-2018 铝电解用石墨化阴极炭块.pdf

猜你喜欢

ITU-R INFORME BT 804 SPANISH-1978 DEFINITIONS OF PARAMETERS FOR AUTOMATIC MEASUREMENT OF TELEVISION INSERTION TEST SIGNALS《电视插入自动测量参数的定义》.pdf

ITU-R INFORME BT 956-2 SPANISH-1990 Data broadcasting systems signal and service quality field trials and theoretical studies《数据广播系统 信号和服务质量的现场试验和理论》.pdf

ITU-R INFORME BT 958-1 SPANISH-1986 Possibilities for incorporating the sound information in the video signal in terrestrial television《声音信息在视频信号中的可能性》.pdf

ITU-R INFORME BT 959-2 SPANISH-1990 Experimental results relating picture quality to objective magnitude of impairment《客观图像质量影响大小的实验结果》.pdf

ITU-R INFORME BT 961-2 SPANISH-1994 Terrestrial Television Broadcasting in Bands Above 2 GHZ《2 GHZ以上频段的地面电视广播》.pdf

ITU-R INFORME BT 962-2 SPANISH-1990 THE FILTERING SAMPLING AND MULTIPLEXING FOR DIGITAL ENCODING OF COLOUR TELEVISION SIGNALS《彩色电视数字编码的滤波 采样和复用》.pdf

ITU-R INFORME F 2047 SPANISH-2004 Technology developments and application trends in the fixed service《技术的发展及在固定服务中的应用趋势》.pdf

ITU-R INFORME F 2058 SPANISH-2006 Design techniques applicable to broadband fixed wireless access systems conveying Internet protocol packets or asynchronous transfer mode cells《适用.pdf

ITU-R INFORME F 2060 SPANISH-2005 Fixed service use in the IMT-2000 transport network《国际移动通信-2000(IMT-2000)运输网络使用的固定服务》.pdf