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GB/T 38001.11-2020 柔性顯示器件第1-1部分：術(shù)語與文字符號 Flexible display devices- Part 1-1:Terminology and l...2023-09-19

CNAS R01-2018 認(rèn)可標(biāo)識使用和認(rèn)可狀態(tài)聲明規(guī)則 Rules for the Use of Accreditation Symbols and Reference to Acc...2023-09-01

GB/T 34187-2017 城鎮(zhèn)供熱用單位和符號 Units and symbols for urban heating2023-07-28

GB 12319-2022 中國海圖圖式 Symbols, abbreviations and terms used on Chinese charts2023-07-08

GB/T 2821-2003齒輪幾何要素代號Gear—Symbols for geometrical data2022-06-13

GB/T 4888-2009故障樹名詞術(shù)語和符號Terms and symbols for fault tree2022-06-06

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