| 1. | K + is remnant because of uncompleted filtering of kc1 from the precursor solution , and the molar ratio of k + to nb + was found to be 3 : 5 缓冲层为3层的薄膜与衬底的匹配最好。而且,薄膜的颗粒均匀,表面平整, ra只有4nm 。 |
| 2. | The preparation conditions of composite were optimized , including the initiator concentration ( naoh ) and the molar ratio of aldehyde to amine 结果表明,聚甲亚胺的醛端基与引发剂氢氧化钠发生了cannizarro反应,从而对复合材料的制备产生阻聚影响。 |
| 3. | Based on orthogonal test , the factors influencing the synthesis of di - n - propyl phosphite , such as reaction temperature , reaction time and molar ratio of reactant , were investigated 通过正交优化试验,考察了温度、时间和物料配比对二正丙基亚磷酸酯的合成收率的影响。 |
| 4. | The activity of different solid acids and influences of reaction temperature , molar ratio of benzene and nitrating agent on benzene nitrofication were discussed 讨论各种固体酸催化剂对苯硝化的催化活性、反应温度、苯与硝化剂物质的量比等工艺条件对硝基苯基本收率的影响。 |
| 5. | The influences of w0 ( molar ratio of water to surfactant ) , the concentration of the reactants and the aging time on the morphologies and the sizes of the nanoparticles were studied 研究了微乳液中水与表面活性剂的摩尔比( _ 0 ) 、反应物浓度及浓度比、陈化时间等条件对产物形貌的影响。 |
| 6. | The concentrations of mercury and selenium in ten dolphin livers were determined . mercury and selenium exist in the livers as abnomal high concentrations at approximate 1 : 1 molar ratio of mercury to selenium 10个肝脏样品汞硒含量测定结果表明,海豚肝脏中同时积累了高浓度的汞和硒( r = 0 . 87 ) 。 |
| 7. | The effects of the concentration , the molar ratio of mao to the metallocene c3 or c4 and the polymerization temperature on the polymerization activity were also investigated individually 这为进一步研究两种催化剂的复配奠定了基础。并且发现在双亚胺基吡啶铁配合物与茂金属复配时存在共单体效应。 |
| 8. | The factors influencing on the yield of benzyl propionate , such as the dosage of catalyst , molar ratio of benzyl alcohol to propionic acid , reaction time and the amount of cyclohexane and so on , were investigated 考察了催化剂用量、苯甲醇与丙酸物质的量比、反应时间和带水剂环己烷用量等因素对丙酸苄酯收率的影响。 |
| 9. | Molar ratio of 111 in methanol - dmf mixed solution . single - crystal x - ray diffraction analysis shows that it consists of a cyano - bridged chain structure . the nd atom is eight - coordinate with a distorted square antiprism geometry . each cr 摩尔比为111在甲醇- dmf混合溶剂中自组装得到。由x -射线单晶衍射结构分析得知其属于单斜晶系,空间群为 |
| 10. | The optimal molar ratio of bzach was ti4 + : bzach = l : 0 . 8 , and the solvent was ethyl alcohol and de - ionied water . after heat treatment , the thickness of the thin films was about 70nm and the line width was 0 . 5 urn 用此溶胶制备bst凝胶膜,通过激光干涉制备了bst薄膜光栅,溶洗剂为乙醇十去离子水,图形热处理后的厚度约为70nm ,线宽约为0 . 5卜m 。 |