Soil improvers and growing media - determination of a quantity ; german version en 12580 : 1999 土壤改进剂和生长介质.量的测定
Soil improvers and growing media . labelling , specifications and product schedules 土壤改进剂和生长介质.贴标签规范和产品目录
Soil improvers and growing media - determination of electrical conductivity ; german version en 13038 : 1999 土壤改进剂和生长剂.导电性的测定
Soil improvers and growing media - determination of organic matter content and ash ; german version en 13039 : 1999 土壤改进剂和生长剂.有机物含量和灰分的测定
Ascorbic acid and ammonium dihydrogen phosphate solution were used as the matrix modifier 采用抗坏血酸和磷酸二氢铵作混合基体改进剂，热解涂层石墨管，塞曼扣背景。
Rapid determination of trace arsenic in water by graphite furnace atomic absorption spectrometry using matrix modifier 用基体改进剂的石墨炉原子吸收光谱法快速测定水中痕量砷
In the end , the expected performance of cetane improvers and the prospects of this kind of additives as well as the promising advancement are concerned 指出了十六烷值改进剂应具备的性能和发展方向，并提出了发展建议。
Soil improvers and growing media - determination of physical properties - dry bulk density , air volume , water volume , shrinkage value and total pore space ; german version en 13041 : 1999 土壤改进剂和生长剂.物理特性的测定.毛体积干密度
The significance , types and mechanism of diesel fuel octane improvers are introduced , and the characteristics of some typical cetane improvers are compared in detail 摘要就柴油十六烷值改进剂的种类、作用机理及其研制的重要意义做了综述，介绍了部分十六烷值改进剂的性能特点。
The contents of pb and cd in soils and base - muds are determined by graphite furnace atomic absorption spectrometry with self - absorption background correction and ( nh4 ) 2hp04 as matrix modifier 摘要利用自吸效应背景校正，以磷酸氢二铵为基体改进剂，石墨炉原子吸收法测定土壤和底泥中的铅、镉。
