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Number of entries (Data is updated on a monthly basis): 46674
GB/T 14573.1-1993
声学 确定和检验机器设备规定的噪声辐射值的统计学方法 第一部分:概述与定义
Acoustics--Statistical methods for determining and verifying stated noise emission values of machinery and equipment--Part 1:General considerations and definitions
GB/T 14733.1-1993
Terminology for telecommunications--Telecommunications,channels and networks
GB/T 18273-2000
石油和液体石油产品 立式罐内油量的直接静态测量法 （HTG质量测量法）
Petroleum and liquid petroleum products--Direct static measurements--Contents ofvertical storage tanks--Mass measurement by hydrostatic tank gauging
GB/T 17558-1998
Camera flash illuminants--Determination of spectral distribution index(ISO/SDI)
Number of entries (Data is updated on a monthly basis): 46674