氯乙酸的

On the basis of above results, the reaction rectification tower to synthesize benzyl chloride was established.

目前，国内均采用间歇釜式生产，一氯乙酸生成的同时也生成了副产物二氯乙酸，反应终点二氯乙酸浓度在12-25％。

This article through the belt hydroxyl aldehyde class material and the chloroacetic acid response, the synthesis intermediate, then with the neighbouring phenylene diamine responded again synthesized 6 kind of benziminazole class compound, including 4 kinds not to report.

本文通过带羟基的醛类物质和氯乙酸的反应，合成中间体，然后再与邻苯二胺反应合成了6种苯并咪唑类化合物，其中有4种还未被报道。

Objective: To establish the gas chromatography in drinking water chloroacetate detection.

目的：建立气相色谱法测定生活饮用水中氯乙酸的检测方法，并应用于水样的检测。

Under above conditions, 97.6 % of chloroacetic acid was converted.

在此反应条件下，氯乙酸的酯化率为97.6%。

The model was applicable to most of the organics in the experiment, and wasnot well applicable to acetone and chloroacetic acid.

模型对大部分试验有机物都适用，对丙酮和氯乙酸的适用性较差。

The removal efficiency of dichloroacetic acid from drinking water using the advanced oxidation technology UV/H2O2 and the influencing factors were investigated in batch reactors,and the relevant dynamic analysis was carried out.

采用间歇式反应器考察了UV—H2O2高级氧化技术去除饮用水中二氯乙酸的效果及其影响因素，并进行了相关的动力学分析。

The investigation on the concentration of four haloacetic acid s during conventional water treatment process in waterworks and in drinking waters in North China showed that there were only dichloroacetic acids and trichloroacetic acids in waters,and the proportion of TCAA was from 52% to 90%.

对北方某自来水厂常规水处理过程及饮用水体中的4种卤乙酸质量浓度进行了调查，结果表明水体中只存在二氯乙酸和三氯乙酸，其中三氯乙酸所占比例较大，为52%~90%；常规水处理工艺对二氯乙酸有较为明显的去除效果，去除率在15%以上，而对三氯乙酸没有明显的去除效果，但总体而言其对卤乙酸有10%左右的去除率；预氯化对卤乙酸的产生起主导性作用，该处产生的卤乙酸占整个氯化过程产生的卤乙酸总量的60%以上，因此常规工艺有必要从预氯化工艺着手加以改进，来更好的控制卤乙酸的产生量。

In consideration of the competition of reactions between acetic acid, chloroacetic acid, dichloroacetic acid andchlorine, a competition factor was introduced for the improvement of fitting accuracy between calculated and experimental value of concentration.

结果表明，加入&竞争因子&的平行-连串宏观动力学模型能准确地反映己酸光氯化合成三氯乙酸的反应动力学规律。

The five halogenated acetic acids, monochloroacetic acid, dichloroacetic acid, trichloro acetic acid, monobromoacetic acid, dibromoacetic acid, were separated on an IonPac AS19 column specially designed for oxyhalides, and the separating conditions were optimized.

利用IonPac AS19大容量阴离子交换色谱柱对水中的一氯乙酸、二氯乙酸、三氯乙酸、一溴乙酸、二溴乙酸5种卤代乙酸进行了分离，优化了分离条件。

To establish the method of head space gas chromatography for the determination of TCA in urine.

目的 建立尿样中三氯乙酸的顶空－气相色谱毛细管柱测定方法。

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。