By analyzing the presently used method, this paper puts forward a new theory of using ″ relative reactive coefficient ″ to describe the reactivity of magnetizing water on cement. 分析了目前磁化水对水泥混凝土增强作用的研究方法的缺陷,首次提出用相对活性系数来描述磁化水对水泥的活性;
The supercritical fluid extraction not only removed the solid particals and the quinoline insoluble particles from Dagang petroleum residue, but also produced a number of pitch fractions, many of which presented narrow distribution of relative molecular mass and homogenous reactivity. 采用超临界技术萃取分离大港常压渣油,可有效的脱除一些喹啉不溶物和固体杂质,且获得相对分子质量分布窄、反应性均一的组分。
The antibody showed relative cross reactivity of 6.22% and 24.31% with chlortetracycline hydrochloride and oxytetracycline hydrochloride. 与土霉素、金霉素的交叉反应分别为24.31%、6.22%。
Study on Measurement of Relative Reactivity Ratios by GC 气相色谱法测定共聚合竞聚率的研究
Influence of Relative Humidity on Methacholine-induced Airway Reactivity in Sensitized Mice 空气湿度对致敏小鼠气道反应性的影响
The mean relative reactivity of three kinds of protons towards chlorination is R ( CH)> R ( CH2)> R ( CH3), and the chlorine atoms are distributed homogeneously in the molecular chain. 伯、仲、叔三种氢的相对氯化活性为R(CH)>R(CH2)>R(CH3),并乒表明氯化反应比较均匀地发生在无规聚丙烯分子链上。
Results indicated that BTEX compounds exhibited good same original sources, and their concentrations had distinct diurnal and seasonal variations which were closely relative to vehicle exhaust emission, fossil fuel combustion during heating period and photochemical reactivity. 结果表明,苯系物具有很好的同源性,其浓度存在明显日变化和季节变化特征,这些变化特征与交通尾气排放、采暖期化石燃料燃烧、光化学反应活性等密切相关。