JY-T 0162-2011 肺泡结构模型
ISO 4377 2012 Hydrometric determinations — Flow measurement in open channels using structures — Flat-V weirs.pdf
ISO 6438-1983Documentation. African coded character set for bibliographic information interchange fi.pdf
ISO 21368 2022 Adhesives — Guidelines for the fabrication of adhesively bonded structures and reporting procedures suitable for the risk evaluation of such structures.pdf
ISO-IEC 23736-4 2020 Information technology - Digital publishing - EPUB 3.0.1 - Part 4 Open container format.pdf
ISO 20130 2018 Soil quality Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates.pdf
ISO 19698 2020 Sludge recovery recycling treatment and disposal Beneficial use of biosolids Land application.pdf
ISO 5450 1980 Ferrotungsten — Specification and conditions of delivery.pdf
ISO 8207 1996 Gas welding equipment — Specification for hose assemblies for equipment for welding, cutting and allied processes.pdf
ISO IEC 16509 1999 Information technology — Year 2000 terminology.pdf
ISO 7884-2 1987 Glass — Viscosity and viscometric fixed points — Part 2 Determination of viscosity by rotation viscometers.pdf
GB-T 10046-2018 银钎料.pdf
GB-T 6414-2017 铸件 尺寸公差、几何公差与机械加工余量.pdf
GB-T 1185-2006 光学零件表面疵病.pdf
GB-T 13829.6-2004 槽销 半长锥槽.pdf
GB-T 2900.67-2004 电工术语 非广播用摄像机.pdf
GB-T 21529-2008 塑料薄膜和薄片水蒸气透过率的测定 电解传感器法.pdf
GB-T 32684-2016 塑料 酚醛树脂 游离甲醛含量的测定.pdf
GB-T 23837-2009 工业循环冷却水中铝离子的测定 原子吸收光谱法.pdf
GB-T 1392-2021 船舶与海洋技术 甲板机械 舷梯绞车.pdf
GB-T 16859-1997 阀器件堆、装置和电力变流设备的端子标记.pdf