可滴定的

The results showed that the Mulberry fruit surface carried large numbers of yeast but little other mixed fungi; ethanol fermentation reached the peak value in 48h'; before vinegar production the acetification bed breeding took 9~10d, but the vinegar fermentation cycle was only about 24h during production .

结果表明，桑椹果实表面携带有大量的酵母菌而几乎不带其他杂菌，酒精发酵醪除含有大量的酵母菌之外未发现有其他杂菌，酒精度在发酵 48h 时达到高峰；桑椹醋生产前的醋酸菌床培育需要9～10d 时间，投入生产后醋酸发酵周期仅需要24h ；桑椹醋总黄酮含量高达6.68 mg/mL ，对 DPPH 自由基的清除作用远高于山西陈醋、镇江香醋和山楂果醋，具有良好的抗氧化作用；利用桑椹醋自身色素颜色变化可判断酸度测定时酸碱滴定终点。

The results showed that the mulberry fruit surface carried large numbers of yeast but little other mixed fungi; ethanol fermentation reached the peak value in 48h'; the acetification bed breeding took 9~10 d before vinegar production, but the vinegar fermentation cycle was only about 24h during production.

结果表明，桑椹果实表面携带有大量的酵母菌而几乎不带其他杂菌，酒精发酵醪除含有大量的酵母菌之外未发现有其他杂菌，酒精度在发酵48h时达到高峰；桑椹醋生产前的醋酸菌床培育需要9~10d，投入生产后酷酸发酵周期仅需要24h；桑椹醋总黄酮含量高达6.68mg/mL，对DPPH的清除作用远大于山西陈醋、镇江香醋和山楂果醋，具有良好的抗氧化作用；利用桑椹醋自身色素颜色变化可判断酸度测定时酸碱滴定终点。

According to the papers EDTA Titration of lead in lead-zinc content of the basic principles Determination of its conditions for the in-depth and meticulous research, is a stable and reliable analytical methods and operating procedures, that will be for the mine, China Metallurgical Industry Galena laboratory testing to provide guidance and basis.

本论文根据EDTA滴定法测定铅锌矿中铅的含量的基本原理，对其测定条件进行了细致深入的研究，给出了稳定、可靠的分析方法和操作步骤，可为矿山、冶金行业化验室中铅矿的检验提供指导和依据。

Hrough copolymerization of styrene with few quantity of methacrylic acid, maleic anhydrate or 4-vinyl pyridine respectively and of butyl methacrylate with maleic anhydrate, the functional groups carboxyl, simple anhydride and pyridyl have been introduced respectively to the chain of PS or PBma.

通过苯乙烯与少量的甲基丙烯酸、马来酸酐或4—乙烯基吡啶的共聚及甲基丙烯酸正丁酯与马来酸酐的共聚，可在聚苯乙烯及聚甲基丙烯酸丁酯链上分别引入功能基因羧基、酸酐基和吡啶基对共聚物进行了红外光谱、酸碱滴定、元素分析、玻璃化转变温度、粘度及紫外光谱的测定。

In this investigation,the composition of copolymer P(AM- co -NaAMPS) of acrylamide and 2-acrylamido-2-methyl-propanesulfonate sodium has been determined with the aqueous solution of cetyl trimethyl ammonium bromide as titrant at a concentration of 0.001 mol·L-1 by conductometric titration method.

与元素分析进行比较的结果表明，上述复合作用电导滴定法可作为测定水溶性大分子链中磺酸盐单体含量的方便而又准确的方法，而且预计还可用作为测定水溶性大分子链中其它离子性基团含量的简捷方法。

The source,existing form and equilibrium of carbonic acid in natural water are presented in this article,which points out that alkalinity is determined by double indicator that indicates purply at the first terminal point,while at the second terminal point should use methyl red-bromocresol green mixed indicator.

介绍了天然水体中碳酸的来源、存在形式及平衡关系；指出用&双指示剂&法测定水中碱度的第一终点应显粉紫色，第二终点宜采用甲基红-溴甲酚绿混合指示剂；测定游离二氧化碳要用双样测定并严格控制滴定终点；各种碳酸的含量可与pH值、硬度的测定结果进行校核。

Experimental study on effect of acetic acid and carbonic acid on clay's geotechnical behaviors;2. The source,existing form and equilibrium of carbonic acid in natural water are presented in this article,which points out that alkalinity is determined by double indicator that indicates purply at the first terminal point,while at the second terminal point should use methyl red-bromocresol green mixed indicator.

介绍了天然水体中碳酸的来源、存在形式及平衡关系；指出用&双指示剂&法测定水中碱度的第一终点应显粉紫色，第二终点宜采用甲基红-溴甲酚绿混合指示剂；测定游离二氧化碳要用双样测定并严格控制滴定终点；各种碳酸的含量可与pH值、硬度的测定结果进行校核。

One integrative transformant was obtained through PCR and phenotype identification, designated as A.oryzae ONL1. The 7-day fermentation broth of A.oryzae ONL1 could hydrolyze tributyrin verified by forming transparent cleared zone on tributyrin plate, and the enzyme activity reached 2.5 U/mL. The SDS-PAGE electrophoretic map of the fermentation broth demonstrated that there was a typical RML band at 32.5 kDa.

其培养7天的培养液上清在以三丁酸甘油酯为底物的平板上形成清晰的水解透明圈，碱滴定法酶活测定表明培养液酶活可达2.5 U/mL，培养液上清的SDS-PAGE图谱在32.5 kDa处有RML的特征条带。

This paper has carried out careful thorough research according to the EDTA basic principle of the content of zinc in titration mensuration lead zinc mine, for its mensuration condition , has given steady, reliable analysis method and operating step , can offer guidance and basis for the inspection of lead mine in mining, metallurgical profession laboratory.

本论文根据EDTA滴定法测定铅锌矿中锌的含量的基本原理，对其测定条件进行了细致深入的研究，给出了稳定、可靠的分析方法和操作步骤，可为矿山、冶金行业化验室中铅锌矿的检验提供指导和依据。

Its accuracy and precision are better than two thousandths under suitable conditions.

该方法能适用于较低浓度的溶液，在适当的条件下，滴定结果的准确度和精密度都可小于千分之二。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。