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YD-T 4891-2024 音视频通话业务体验指标及评估方法（正式版可搜索）
ISO 23020 2021 Space systems — Determination of test methods to characterize material or component properties required for break-up models used for Earth re-entry.pdfISO 14520-11 2016 Gaseous fire-extinguishing systems Physical properties and system design Part 11 HFC 236fa extinguishant.pdfISO 21068-3 2024 Chemical analysis of raw materials and refractory products containing silicon-carbide silicon-nitride silicon-oxynitride and sialon Part 3 Determination of nitrogen oxygen and metall.pdfISO 18437-1 2012 Mechanical vibration and shock — Characterization of the dynamic mechanical properties of visco-elastic materials — Part 1 Principles and guidelines.pdfISO 27001 标准--中英文.pdfISO 19670 2017 Fertilizers and soil conditioners — Solid urea aldehyde slow release fertilizer — General requirements.pdfISO 12164-6 2023 Hollow taper interface with flange contact surface — Part 6 Receive.pdfISO 3012 1999 Petroleum products — Determination of thiol (mercaptan) sulfur in light and middle distillate fuels — Potentiometric method.pdfISO 4803 2021 Laboratory glassware — Borosilicate glass tubing.pdfISO-IEC 2382-31 1997 Information technology -- Vocabulary -- Part 31 Artificial intelligence -- Machine learning.pdfGB-T 25870-2010 甜瓜 冷藏和冷藏运输.pdfGB-T 22382-2017 额定电压72.5 kV 及以上气体绝缘金属封闭开关设备与电力变压器之间的直接连接.pdfGB-T 19512-2004 声学 消声器现场测量.pdfGB-T 602-2002 化学试剂 杂质测定用标准溶液的制备.pdfGB-T 43404-2023 轻型汽车道路负载 底盘测功机再现.pdfGB-T 17880.3-1999 小沉头铆螺母.pdfGB-T 196-2003 普通螺纹 基本尺寸.pdfGB-T 14042-1993 液压缸活塞杆端柱销式耳环安装尺寸.pdfGB-T 21727-2008 固态速溶茶 儿茶素类含量的检测方法.pdfGB-T 14857-1993 演播室数字电视编码参数规范.pdf
