酸化的

This paper reviewed the relationship between fluoridated milk and dental caries prevention derived from the preceding academic research. Several topics, including milk fluoridation, fluoridated milk in animal and human clinical studies, the effect of fluoridated milk to fluoride concentration in saliva and dental plaque, the bioavailability of fluoridated milk, and the effect on human teeth were discussed.

本文回顾有关牛奶与龋齿间关系以及牛奶氟化以预防龋齿的文献，从牛奶氟化的最初想法，到氟化牛奶的动物实验、人类临床实验，进一步研究对唾液、牙菌斑中含氟量的影响，以及氟化牛奶的生物可得性，最后探讨对人类牙齿的抗酸溶解力的改变。

In a system consisting of 20% PEG 400 and 12% magnesium sulfate, the partition coefficient of PGA was less than 0.01, PGA almost completely partitioned into the magnesium sulfate-rich bottom phase. Meanwhile, the partition coefficient of cephalexin was 6.7, the partition coefficients of phenylglycine methyl ester and 7-ADCA were 1.5 and 1.2, respectively.

通过考察头孢氨苄、苯甘氨酸甲酯和7-氨基脱乙酰氧基头孢烷酸(7-ADCA)在ATPS中的分配行为建立了一个含20%PEG 400和12%硫酸镁的ATPS，在此体系中头孢氨苄的分配系数为6.7，苯甘氨酸甲酯的分配系数为1.5，7-ADCA的分配系数为1.2，且青霉素酰化酶的分配系数小於0.01。

Objective To study the expression of thymidine phosphorylase, thymidylate synthase and dihydropyrimidine dehydrogenase mRNA in breast cancer and its correlation with prognosis.

目的 探讨乳腺癌组织中胸苷酸化酶、胸苷酸合成酶和二氢嘧啶脱氢酶mRNA表达水平及其与预后的关系。

Methods:Fibrinogen was purified by precipitation from citrated plasma by saturated ammonium sulplvate.Fibrinogen-bound sialic acid levels with 22 controls and 113 liver patients were assayed by the thiobarbituric acid method.

应用饱和硫酸铵制备纯化纤维蛋白原，硫代巴比妥酸法测定22例正常人，133例肝病患者血浆FSA水平，并对血浆和纯化纤维蛋白原脱唾液酸化前后的凝血酶时间和纤维蛋白单体聚合浊度进行测定。

This thesis studied the alkylationperformances of supported heteropoly acid and zeolite catalysts as well as correlativeprocesses, which is significant for theory and practical application.

本论文研究杂多酸及分子筛两类固体酸催化剂的烷基化性能及其相关工艺，具有实际应用和理论意义。

By analyzing and researching the corrosion resistant mechanism of adsorption typal acidification corrosion inhibitor, taking single equational experimental method, making use of mannich reaction and using the hydrochloric acid as catalyst and the ethyl alcohol absolute as solvent, the new acidification corrosion inhibitor HZ-1 is synthesed by formaldehyde、hypnone、aromatic amines in the present research of this thesis.

本文通过对吸附型酸液缓蚀剂缓蚀机理的分析和研究，利用单因素实验方法，采用曼尼希反应，以盐酸为催化剂，无水乙醇为溶剂，用甲醛、苯乙酮、芳香多胺合成了新型酸化缓蚀剂HZ-1。

Mol/L. 3 A study on the ECL of acridinum esters including 10--acridinium-9-carboxyl-phenyl-ester iodinate and 10-methyl-9-(p-formylphenyl)-acrdiniumfluorosulphonate in neutral solution was carried out. It was found both CACPEI and MFPA give strong ECL in KNO〓 solution when an appropriate voltage was applied on Pt electrode.

本文研究了碘化10-乙羧基吖啶-9-羧酸苯酯和对甲酰基苯基-10-甲基吖啶-9-羧酸酯氟磺酸盐的ECL行为，发现在中性KNO〓介质中，这两种吖啶酯都能在一定的电位下产生很强的ECL信号，考察了各种影响因素，确定了发光的最佳条件，探讨了可能的发光机理。

The synthesis of ascorbyl laurate from methyl laurate and ascorbic acid was studied.

以月桂酸甲酯和维生素 C为原料，以固定化的脂肪酶为催化剂，合成了月桂酸维生素C酯。

In the present work, the synthesis of phytosterol laurate was studied, which was esterified directly by using sodium dodecyl sulfate as catalyst. And the optimal conditions were obtained by single-factor and orthogonal experiment.

研究使用十二烷基硫酸钠为催化剂，通过羧酸直接酯化，合成植物甾醇月桂酸酯的工艺，利用单因素试验和正交试验确定最佳工艺条件。

Said invention utilizes the control of sulfonation extent of polystyrene sulfoacid membrane and distribution of sulfoacid group to implement modification or polystyrene sulfoacid membrane, on the primise of that the protein conductivity of the membrane is not affected, the permeability of the methyl alcohol in the membrane is reduced, and the alcohol-resistance of membrane material is raised.

通过控制聚苯乙烯磺酸膜的磺化程度和磺酸基团的分布状况来对聚苯乙烯磺酸膜进行改性，在不影响膜的质子传导性能的前提下，降低了甲醇在膜内的渗透率，提高了膜材料的阻醇性能。

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。