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KS K ISO 8559-2-2019 Size designation of clothes — Part 2: Primary and secondary dimension indicators2023-10-20

NY/T 3830-2021 非水溶中量元素肥料 Non-water soluble secondary element fertilizer2023-10-03

GB/T 24173-2016 鋼板二次加工脆化試驗(yàn)方法 Steel sheets--Secondary work embrittlement test method...2023-07-05

GB/T 41469-2022 數(shù)字教材中小學(xué)數(shù)字教材元數(shù)據(jù) Digital textbook-Metadata of digital textbook for primary and ...2023-06-13

GB/T 40503-2021選煤廠次生煤泥量的測(cè)定方法Measuring methods of secondary coal slime content in coal preparati...2022-10-24

GB/T 41471-2022數(shù)字教材中小學(xué)數(shù)字教材出版基本流程Digital textbook—Publishing fundamental process of digita...2022-10-26

GB/T 41469-2022數(shù)字教材中小學(xué)數(shù)字教材元數(shù)據(jù)Digital textbook—Metadata of digital textbook for primary and ...2022-10-27

JT/T 586-2004港口機(jī)械.負(fù)荷傳感器二次儀表Port machinery -- Secondary meter for load cells2022-06-16

Analysis of impulse electric field effect on organic exhaust gas decomposition2020-09-15

Dynamic Water Modeling and Application of Billet Continuous Casting2020-07-08

Secondary biogenic coalbed gas in some coal fields of China2020-06-12

污泥減量熱解機(jī)熱解焚燒技術(shù)概述2020-06-12

污泥減量熱解機(jī)熱解焚燒技術(shù)概述2020-03-24