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GB/T 39861-2021 锰酸锂电化学性能测试放电平台容量比率及循环寿命测试方法

GB/T 39861-2021.Electrochemical performance test of lithium manganese oxide-Test...

GB/T 39751-2021.Energy detection method for equipment manufacturing system-Guide...

YY/T 0734.2-2009.Washer-disinfectors- Part 2 : Requirements and tests for washer...

GB/T 28170.2-2021.Information technology-Computer graphics and image processing-...

TB/T 1123-92.1主题内容与适用范围TB/T 1123规定了联锁图表的编制内容及方法。TB/T 1123适用于电锁器联锁和电气集中联锁设备的车站。驼...

GB/T 39761.1-2021.Green product assessment-Household electric appliances-Part 1:...

TB 1139-83.TB 1139适用于铁路机车和固定锅炉用天然水的水质分析。生活用水分析，也可采用本标准。1一般规则1.1 天然水的分析项目包括: PH值，...

GB/T 20996.1-2020.Performance of high-voltage direct current (HVDC) systems with...

GB/T 33770.6-2021.Information technology service-Outsourcing-Part 6:General requ...

YY 0055. 2-2009.Dentistry-Powered polymerization activators-Part 2:Light-emittin...