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In this process, the electrolylic bath with cationic exchange membrance and leas electrode is used. The cathode liquor is oxalic acid, the anode liquor is diluted sulfuric acid. The process above has following advantages with high yield, top quality, lower cost, no "three wastes" pollution, and no oxalic aldehyde in the product. It is a cleaner and environment-friend technology, and is a development trend for production of glyoxalic acid. Complete analytical process for raw materials, intermediate and final products were established.

本论文通过对乙醛酸合成路线的研究，确定了草酸电解法制乙醛酸的工艺路线，此法采用装有阳离子交换隔膜和铅电极的电解槽，阴极电解液为草酸溶液，阳极电解液为稀硫酸，该工艺具有产品收率高、质量好、成本低、无三废污染、产品中无乙二醛等特点，是一条清洁、绿色工艺，是生产乙醛酸的主要发展方向。

In this dissertation, the sodium bentonite was modified using hexadecyl trimenthyl ammonium bromide and cationic polyacrylamide.

本文以市售钠基膨润土为原料，分别以十六烷基三甲基溴化铵和阳离子聚丙烯酰胺为改性剂，制各了新型复合插层有机膨润土。

The sodium bentonite was modified by organic reagent hexadecyl trimenthyl ammonium bromide and cationic polyacrylamide. The structures of modified organo-bentonite and the effect of concentration of the intercalating reagent and reacting time on decoloring capacity were studied.

用阳离子有机改性剂十六烷基三甲基溴化铵和阳离子聚丙烯酰胺复合插层改性钠基膨润土，分析了改性膨润土的结构，研究了改性剂质量浓度及二次改性时间对复合插层膨润土脱色效果的影响。

Many factors, such as the content of the hydrotropic cationic polymer, pre-drying temperature and drying time could influence the degree of the migration of the latex binder.

并通过纸页层间剪切强度、滤纸的扫描电子显微镜图像等对处理后的滤纸热迁移程度与增强后的纸页各项性能进行了表征。

The multi-inhibited system composed of alum and hydrotropic cationic polymer was employed to hinder the migration of the latex binder.

探讨了明矾与带正电荷的水溶性聚合物复配体系对阻碍增强树脂热迁移的作用。

Phosphonic acids, hydroximic acids, arsenic acids and cationic not only have a strong collecting ability, but also have a strong collecting selectivity which is better than that of fatty acids.

认为脂肪酸类捕收剂的捕收能力较强而选择性较差，与钽铌矿物作用时生成了铁和锰的油酸盐，而不是钽铌的油酸盐。

After extraction by ethanol and purification by cationic ion-exchange column, a method of using reversed-phase high-performance liquid chromatography and precolumn derivatization with o-phthalaldehyde and 9-fiuorenylmethylchloroformate is employed for determination of free amino acids in tobacco . This method assures that amino acids with amino and imino groups can be determined simultaneously. The results of duplication experiment and recovery experiment are acceptable.

本试验用乙醇提取烟叶中的游离氨基酸，并用阳离子交换树脂纯化，再用邻苯二甲醛、氯甲酸芴甲酯联合柱前衍生、反相高效液相色谱分析测定了烟叶中的游离氨基酸，该方法能同时测定烟叶中的带氨基和亚氨基基团的氨基酸，并且分析方法的重现性和回收率均令人满意。

Compared with the small molecular iodonium photoinitiators, its relative migration ratio in the cured film was much lower. The photoinitiation activities of the epoxy system in which PS-ISbF6 as a cationic photoinitiator were studied.

与小分子碘鎓盐系光引发剂相比，PS-ISbF6的紫外最大吸收波长λ红移，在240-270 nm范围内有较强的吸收；固化成膜后其相对迁移率较小分子光引发剂有显著下降。

The Chapter 2 also shows the reactions of a diiron cationic bridging carbyne complex with N-containing nucleophile such as LiNEt〓 to give the arylcarbene complex 〓.

在含氮亲核试剂LiNEt〓与阳离子桥卡拜络合物反应中，生成桥卡宾碳上键合氢的双铁桥卡宾络合物。

Mechanistically, the photocatalytic processes are based on the electron transfer from a excited dyes to the conduction band of TiO〓 semiconductor and subsequent some reactions such as the further reaction of injected electrons with adsorbed oxygen and complicated decomposition processes of dye cationic radicals to lead to dye degradation or mineralization, which offers a feasibility of utilizing inexpensive visible light or most part of solar spectra to treat dye pollutants.

其光催化过程的机理为：染料在可见光下被激发，电子从激发态染料传输到TiO〓半导体的导带，随后发生一系列的反应，如注入的电子与吸附的氧反应以及染料正碳自由基复杂的分解反应导致了染料的降解和矿化，这就为利用廉价的可见光或太阳光中的大部分可见光谱来处理染料污染物提供了可能。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。