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  • 精細(xì)煤粉提高化工用水煤漿質(zhì)量濃度的研究2022-09-09
  • YS/T 34.1-2011高純砷化學(xué)分析方法.電感耦合等離子體質(zhì)譜法（ICP-MS）測定高純砷中雜質(zhì)含量Method for chemical analysi...2022-06-14
  • GB/T 23573-2009金屬切削機(jī)床.粉塵濃度的測量方法Metal-cutting machine tools - Determination method of dust con...2022-06-09
  • GB 27742-2011可免于輻射防護(hù)監(jiān)管的物料中放射性核素活度濃度Activity concentration for material not requiring r...2022-06-08
  • GB/T 25915.10-2021潔凈室及相關(guān)受控環(huán)境 第10部分：按化學(xué)物濃度劃分表面潔凈度等級Cleanrooms and associated contr...2022-03-18
  • GB/T 25915.8-2021潔凈室及相關(guān)受控環(huán)境 第8部分：按化學(xué)物濃度劃分空氣潔凈度(ACC)等級Cleanrooms and associated co...2022-03-18
  • GB/T 40345-2021植物保護(hù)機(jī)械 確定可排放液體體積及濃度的試驗(yàn)方法Crop protection equipment. Test method for the...2022-03-18
  • GB/T 40508-2021生物質(zhì)燃?xì)庵薪褂秃突覊m含量的測定方法Determination of tar and dust concentrations in biomass-b...2022-03-18
  • OPTICAL DIAGNOSTIC AND MODELING SOLUTION GROWTH PROCESS OF SODIUM CHLORATE CRYSTALS2020-11-11
  • Theoretic computing model of combustion process of asphalt smoke2020-11-10
  • 世界煤炭資源供需分析?2020-11-08
  • 紅棗濃縮汁的加工工藝2020-10-26
  • Characteristics of Baicalin Synergy with Penicillin or Notopterygium Ethanol Extracts Against Staphy2020-10-22
  • Influence of furfural concentration on growth and ethanol yield of Saccharomyces kluyveri2020-10-22
  • 低濃度乙醇重整燃料發(fā)動(dòng)機(jī)空燃比控制系統(tǒng)的設(shè)計(jì)與試驗(yàn)2020-09-30
  • 地下空間通風(fēng)系統(tǒng)的優(yōu)化2020-09-30
  • 地下空間通風(fēng)優(yōu)化2020-09-29
  • 雙乙烯酮的環(huán)保生產(chǎn)2020-09-25
  • Effect of HCO3- concentration on CO2 corrosion in oil and gas fields2020-09-15
  • Axisymmetric solutions of the Chaplygin gas for initial negative radial velocity2020-09-15
  • Concentration profile of jet gas in the feed injection zone of a FCC riser2020-09-15
  • Impact energy analysis of turbulent water sprays for continuous centrifugal concentration2020-07-08
  • Analysis of Mixing of Pollutants in Water Waves and Currents2020-07-08
  • Prediction of oxygen concentration and temperature distribution in loose coal based on B P neural ne2020-06-12
  • A forecasting and forewarning model for methane hazard in working face of coal mine based on LS-SVM2020-06-12
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