![]() Surface chemical analysis - X-ray photoelectron and Auger electron spectrometers - Linearity of intensity scale 表面化学分析 X射线光电子能谱仪和俄歇电子能谱仪 强度标的线性 |
![]() Photography - Photographic-grade chemicals - Test methods - Part 13: Determination of pH 摄影 照相级化学品 试验方法 第13部分:pH值的测定 |
![]() Test conditions for precision machining centres - Part 4:Accuracy and repeatability of positioning of linear and rotary axes 精密加工中心检验条件 第4部分:线性和回转轴线的定位精度和重复定位精度检验 |
![]() Inflatable boats - Part 2: Boats with a maximum motor power rating of 4.5 kW to 15 kW inclusive 充气艇 第2部分: 发动机最大额定功率为4.5kW~15kW的艇 |
![]() Radio-frequency connecters. - Part 4: R.F.coaxial connectors with inner diameter of outer conductor 16mm(0.63in) with screw lock - Characteristic impedance 50 ohms (Type 7-16) 射频连接器 第4部分:外导体内径为16mm(0.63in)、特性阻抗为50Ω、螺纹连接的射频同轴连接器(7-16型) |
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