乙酸的

It is also shown that the solubility of solids of benzoic acid and 1-naphthalene-acetic acid increases with increase in pressure.

在相同的温度、压力下，苯甲酸的溶解度比苯乙酸大很多，理论分析认为，这是由于苯甲酸的极性较萘乙酸的强所致。

Miltiorrhiza depside salts in beagle dogs, the high AUC was obtained for LSB with a steady high concentration in blood during the infusion. 3. Pharmacokinetics of S.

静脉滴注丹参多酚酸盐的给药方式下，丹参乙酸的药时曲线下面积明显高于同剂量下静脉注射或皮下注射方式的AUC，丹参乙酸在滴注给药期间维持稳定的峰浓度。

The influences of reaction temperature and sulfuric acid concentraction on trichloroethylene conversion and chloroacetic acid recovery have been investigated.

研究了三氯乙烯水解法生产氯乙酸的工艺，并在两种不同的实验方案中考察了反应温度、硫酸浓度对三氯乙烯转化率和氯乙酸收率的影响并确定了适宜的工艺参数，可作为工业化生产研究的基础。

In this paper,four new methods of synthesis aminoacetic acid are introduced.

综述了催化合成氨基乙酸的工艺及反应条件，分析了各种反应的影响因素和特点，展望了氨基乙酸的生物合成技术前景。

The rather amount of dichloroacetic acid not only enhances consumption of raw materials, but also increases the cost, with the difficulty to separate it from the product later the quality of products drops. Dichloroacetic acid is of a few uses causing the huge waste of the fund and equipments.To control the dichloroacetic acid coming out and decrease the consumption o

通过大量实验，对反应精馏技术的原理进行了理论研究，从中探索得出反应精馏法合成氯化节、氯乙酸等有机氯化物的工艺路线，为氯化节和氯乙酸的生产提供了一条新的生产工艺，为反应精馏技术应用的理论研究拓展了新的内容，并为工程设计提供了基本数据。

Experiments show that water solution contained 0. 5 -1 % sodium sulfate and 1 - 2% acetic acid is treated by means of electrodialyzer of 200 × 400mm assembled with tri - membrances and 19% sodium sulfate and 20% acetic acid are recovered by concentrating and separating. The content of salt and acid in the purified water is less than 0. 01%, current efficiency greater than 85 %, flow length in 3 ~ 5m and power consumption about 40 ~ 50 kwh/t.

实验表明，含0.5～1％硫酸钠、1～2％乙酸的水溶液通过三对膜组装的200×400mm电渗析器，分别得到含19％硫酸钠、20％乙酸的浓缩液，外排水中盐和酸的含量小于0.01％，电流效率大于85％，流程长度3～5m，耗电量40～50kwh／t。

The difficulty of route is the refinement of products. There is a lot of sodium chloride in solution. In order to refine the glycolic acid, the methods of vacuum distillation and organic solvent extraction are adopted.

水解合成后得到的是羟基乙酸的水溶液，其中含有大量的氯化钠和少量未水解的氯乙酸及其它杂质，采用减压蒸馏及有机溶剂萃取方法进行精制是比较适宜。

An coupling apparatus with a chlorination reactor and a melt crystallizer was built,which was used in chlorination of acetic acid and separation of monochloroacetic acidby crystalliza- tion at the same time.

用氯化反应与熔融结晶耦合装置，进行乙酸氯化与产物氯乙酸的结晶分离，避免了 MCA 的深度氯化，从而提高了 MCA 的收率。

This further indicated that when the acetic acid compound existed it could slow the growth rate of the particles of polysilicic acid, but total species distribution and its transformation model of polysilicic acid did not change.

乙酸化合物的存在，能够有效减缓硅酸溶液中聚硅酸颗粒物的生长速度，但聚硅酸的总体形态分布与转化规律的模式并没有因为乙酸的存在而发生根本的改变。

And found root exudates have the promotable effect on the activity of IAAoxidase of cucumber and squash,.

在对其生理生化特性的研究中发现，根系分泌物显著的促进黄瓜和南瓜体内吲哚乙酸氧化酶的活性，从而降低其体内吲哚乙酸的水平，抑制其生长发育；根系分泌物还显著抑制受体淀粉酶的活性，这种抑制性随浓度升高而增加，通过影响黄瓜和南瓜体内的能量转化来影响其正常生长。

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。