专利 一种光学镜头主动调焦装置及调焦方法
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ISO 18489 2015 Polyethylene (PE) materials for piping systems — Determination of resistance to slow crack growth under cyclic loading — Cracked Round Bar test method.pdf
ISO27799-2016 Health informatics — Information security management in health using ISO IEC 27002.pdf
ISO IEC 17568 2013 Information technology — Telecommunications and information exchange between systems — Close proximity electric induction wireless communications.pdf
ISO 24138 2024 Information and documentation International Standard Content Code (ISCC).pdf
ISO 22125-2 2019 Water quality Technetium-99 Part 2 Test method using inductively coupled plasma mass spectrometry (ICP-MS).pdf
ISO 23588 2023 Radiological protection — General requirements for proficiency tests for in vivo radiobioassay.pdf
ISO 19407 2023 Footwear Sizing Conversion of sizing systems.pdf
ISO 11277 2020 Soil quality — Determination of particle size distribution in mineral soil material — Method by sieving and sedimentation.pdf
ISO-IEC 22535 2009 Information technology -- Telecommunications and information exchange between systems -- Corporate telecommunication networks -- Tunnelling of QSIG over SIP.pdf
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GB-T 24272-2009 热双金属平螺旋形元件机械转矩率试验方法.pdf
GB-T 24479-2009 火灾情况下的电梯特性.pdf
GB-T 19977-2014 纺织品 拒油性 抗碳氢化合物试验.pdf
GB-T 9636-1988 磁性氧化物制成的圆天线棒和扁天线棒.pdf
GB-T 28900-2012 钢筋混凝土用钢材试验方法.pdf
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GB 20055-2006 开放式炼胶机炼塑机安全要求.pdf
GB-T 14479-1993 传感器图用图形符号.pdf