二酸的

This paper introduccs a method of analysis of diaminopimelic acid in whole-cell of Actinomyces.

常规的放线菌全细胞二氨基庚二酸的分析，时间长，操作繁锁。

Bis-acetylthiosuccinic acid-S_2~(35) was obtained by the addition of compound Ⅳ to acetylenedicarboxylic acid.

本工作简化2，3-二巯基丁二酸的合成步骤，以半微量法制各其硫~(35)标记的化合物。

Metabolic pathway analysis for this strain showed that pentose and hexose could be transferred to succinic acid and other byproducts including acetic acid and α-ketoglutaric acid.

对菌株的代谢途径分析表明细胞具有五、六碳糖代谢酶系，以及在大量合成丁二酸的同时也产生少量乙酸、α-酮戊二酸等副产物。

We investigate the kinetics of polyesterification of adipic acid with neopentyl glycol.

对新戊二醇和己二酸的聚酯化动力学进行了研究。

We investigate the kinetics of polyesterification of adipic acid w ith neopentyl glycol.

对新戊二醇和己二酸的聚酯化动力学进行了研究。

It was generally synthesized with the methods described in literatures (9) and (10) in China, while in foreign countries, azelaic acid was mainly prepared with the methods described in literatures〔11〕and 〔12〕.

国内一般利用文献〔9，10〕的方法制备，而国外近年来主要以文献〔11，12〕的方法获得壬二酸，另外，还出现了以煤和工业废料为原料获取壬二酸的报道〔13〕。

On the condition of using fatty acids of rapeseed oil as raw material,85% acetic acid as solvent, pelargonic acid as recrystalization solvent, this paper prepared azelaic acid and brassylic acid by ozonolysis ,oxidation decomposition ,recrystallization etc.

以蓖麻油酸为原料、85%醋酸水溶液为溶剂，经臭氧化、氧化分解、沸水萃取等过程制备壬二酸的最佳反应条件为：m：m(85%醋酸)=1：4，臭氧化温度20-25℃；氧化分解温度90-95℃，催化剂醋酸锰/醋酸铜用量为原料蓖麻油酸质量的0.09%，氧化分解4h，壬二酸的收率为62.5%。

It is seen that oxygen group function of additives is very remarkably in tribological characteristics, that is EP property of dihydroxy docosanoic acid without active element is very near to that of SO with active element sulfur.

双羟基廿二酸的极压性与不含氧基团的硫化烯烃十分接近，以液体石蜡为基础油，最大无卡咬负荷P〓值，前者为539N，后者为588N，再者相差49N，可以看出，氧基团的作用是十分显著的，即无活性元素的双羟基廿二酸的极压性可以十分接近于含活性元素的抗磨极压剂硫化烯烃。

By alkaline fusion of hydroxycaproic acid and its derivatives with sodium hydrate.

用氢氧化钠碱熔处理废碱液中的羟基己酸及其聚合物，可使废碱液中己二酸的质量分数由 3。

By alkaline fusion of hydroxycaproic acid and its derivatives with sodium hydrate.

用氢氧化钠碱熔处理废碱液中的羟基己酸及其聚合物，可使废碱液中己二酸的质量分数由 3.18%提高到8.74 %，且环境效益和经济效益显

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。