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  • GB/Z 38251-2019 聲學(xué) 換流站聲傳播衰減計(jì)算 工程法 Acoustics—Calculation of sound attenuation during p...2023-09-20
  • DB32/T 3338-2017 無(wú)患子播種育苗技術(shù)規(guī)程 Technical regulation of seed propagation on Sapindus mukurossi...2023-09-19
  • DB32/T 3361-2018 苔草繁殖技術(shù)規(guī)程 Technical regulation for propagation of Carex hererostachya2023-09-04
  • DB3211/T 1033-2022 中華常春藤短穗扦插繁殖技術(shù)規(guī)程 Technical regulation of standard of short cutting propagat...2023-08-16
  • GB/T 40488-2021 漆樹(shù)育苗技術(shù)規(guī)程 Code of practice on propagation of toxicodendron verniciflu2023-07-16
  • ASTM E2058-2019 用火傳播儀測(cè)量合成聚合材料可燃性的試驗(yàn)方法 Standard Test Methods for Measurement of Material...2023-07-14
  • DB32/T 3363-2018 玉簪繁殖育苗技術(shù)規(guī)程 Technical regulation for propagation of Hosta plantaginea2023-07-12
  • DB32/T 3805-2020 金葉錦帶扦插育苗技術(shù)規(guī)程 Technical regulation for cutting propagation of Weigela florida cv...2023-07-10
  • BS EN 60332-1-2-2004+A1-2015 著火條件下電纜和光纜的試驗(yàn) 單股絕緣電線或電纜的垂直火焰蔓延的試驗(yàn) 1kW預(yù)混合火焰...2023-06-27
  • DB32/T 3519-2019 芋頭脫毒快繁技術(shù)規(guī)程 Technical regulation of rapid propagation for virus-free taro...2023-05-07
  • DB11/T 680-2009彩色馬蹄蓮種球繁育技術(shù)規(guī)程Code of practice for propagation and cultivation of Zant edeschi a ...2023-04-19
  • EN 16727-1-2018Railway applications. Track. Noise barriers and related devices acting on airborne sound prop...2023-04-18
  • GB/T 40488-2021漆樹(shù)育苗技術(shù)規(guī)程Code of practice on propagation of toxicodendron verniciflu2022-03-18
  • Modeling and analysis of Internet worm propagation2020-11-22
  • Mechanism of action of cracks water on rock landslide in rainfall2020-07-08
  • Modeling seismic wave propagation in a coal-bearing porous medium by a staggered-grid finite differe2020-06-12
  • Neural Network Identification Model for Technology Selection of Fully-Mechanized Top-Coal Caving Min2020-06-12
  • Effect of roadway turnings on gas explosion propagation characteristics in coal mines2020-06-12