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- low molar ratio of CaO to SiO2 低钙比
- It was shown that the particles with small diameter and narrow distribution could be obtained at a low molar ratio of of KBH_(4) to CuS... 实验表明,硼氢化钾与硫酸铜的摩尔比较小更利于制备粒径小、粒径分布窄、团聚程度低的铜纳米颗粒。
- The critical micelle concentrations and aggregation numbers of sodium dodecyl sulfates(SDS) mixed with different low molar ratio of cetyltrimethylammonium bromide(CTAB) were tested by pyrene fluorescence probe method. 用芘(Py)荧光探针法测定了添加少量十六烷基三甲基溴化胺(CTAB)后,十二烷基硫酸钠(SDS)的临界胶束浓度(CMC)和胶束聚集数(Nm)。
- The results showthat fly ash will reacte with Ca(OH) 2 and high Ca/Si ratio C-S-H gel produced by the hydration of clinker,and so that to produce the C-S-H gel with a lower molar ratio of CaO/SiO. And such C-S-H gel can bind more Na + and K + ions. 结果显示 ,粉煤灰的掺入对ASR有较好的抑制效果。 粉煤灰主要是通过与Ca(OH)2 及水泥熟料水化生成的高Ca/Si比的C -S-H凝胶发生二次火山灰反应 ,生成大量低Ca/Si比的C -S-H凝胶 ,提高了对孔溶液中Na+ 和K+ 的吸收 ,从而起到抑制ASR的作用
- When the Ca/C molar ratio increases to 0.7, nearly all CO2 is fixed. The H2 content and the utilization of CaO keep at -55% and -50% , respectively, after seven cycles. Ca/C摩尔比提高到0.;7时;CO2趋于完全固定;随着循环次数的增加气相产物的组成和产率变化不大;循环使用7 次后;H2含量维持在55%25左右;CaO利用率保持在50%25左右。
- The results show that the molar ratio of C and SiO2 affects the synthesis process significantly, and the optimal ratio was 2. 结果表明，配碳比对合成过程的影响非常显著，在实验条件下配碳比为2最佳。
- Effects of the molar ratio of resorcin to n butylamine was discussed. 讨论了反应物间苯二酚与正丁胺比例对间N-丁基氨基苯酚收率和性质的影响。
- low molar ratio urea-formaldehyde resin 低摩尔比脲醛树脂
- The effects of the molar ratios of SiO2 and P2O5, of SiO2 and MgO on the microstructure of the glaze were investigated by means of XRD, SEM and EDS. The forming mechanism of opacifying particles (glass liquid drops and fine grains) was also analyzed. 利用XRD,SEM,EDS等测试技术,研究了SiO2与P2O5和SiO2与MgO的摩尔比与釉层显微结构的关系,分析了乳浊粒子(玻璃液滴和微晶)的形成机理。
- The effect of the concentration of initial comonomer, the molar ratio of both monomers in the grafting solution, etc. 研究了溶液中单体的浓度和二元单体的摩尔比等条件对接枝率的影响，并探讨了两种单体的竞聚率对接枝率、枝膜的组成及性能的影响。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- It is a mixture of heteroglycan composed of Glc Man Gal Rha GalA in molar ratio of 1.65:1.38:2.2:1.35:1,and little Ara. C 和 G.;C 分析表明其单糖组成为 Glc、Man、Gal、Rha、GalA 其摩尔比为 1
- The foreigners wish to visit Peony Yard of Cao Zhou. 外宾希望到曹州牡丹园参观。
- The molar ratio of LM1 and DNR in the conjugate was measured by Bradford protein assay and UV absorption spectra assay. Bradford蛋白检测法和紫外吸收光谱法检测偶联物中LM_1与DNR的克分子比;
- C, AS-2 is Composed Ara,Xyl, Rha, Gal, Glc, with the molar ratio of 1.6:1.2:1.8:1.0:3.6 aespectively. C分析表明;AS-2由Ara、Xyl、Rha、Gal、Glc组成;其单糖摩尔比为1.;6:1
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- The optimum conditions were as follows:molar ratio of 1,2-propanediol to benzaldehyde 1. 以三氯化铁为催化剂,苯甲醛和1,2-丙二醇反应,合成了苯甲醛1,2-丙二醇缩醛。
- The maximum molar ratio of PbI_2 in As_2S_3-PbI_2 binary glass is 25% when quenched in the icy water. 在冰水淬冷情况下，As_2S_3-PbI_2二元系统玻璃中PbI_2最大摩尔分数可达25%25；
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- The optimal dosage of CaO is 1.8 g/L. 氧化钙的最佳加入量是1.;8 g/L。
