查询词典 purification

Finally, 4, 4'-diaminostilbene-2, 2'-disulfonic acid with high quality was synthesized from DNS after purification.

研究结果表明，适宜的重结晶温度约为85℃，优化pH值为9~10，以重结晶后所得精制DNS为原料可制备高品质4，4'-二氨基二苯乙烯－2，2'-二磺酸。

The active form of NGF is a dimer in which two monomer is linked by 3 disulphide bonds. This form of dimer makes the purification of NGF difficulty because the protein expressed in E.

在蛋白纯化过程中这种由二硫键形成的空间结构往往是蛋白纯化过程中复性的难点，尤其是在大肠杆菌表达生物蛋白时，所表达的蛋白往往以无活性的单体形式存在于细胞内。

The efforts of different purification steps were checked by polyacrylamide gel electrophoresis in the presence of sodium dodecyl sulphate.

各步分离提纯的效果用SDS-PAGE证实。

The process industrial synthsis of tert-dodecyl mercaptan from dodecylene and hydrogen sulfide with aluminium trichloride as catalyst was introduced, which consists of four units including the preparation of catalyst, purification of raw dodecylene, additive reaction and separation of reaction product.

介绍了以无水三氯化铝络合物为催化剂，十二烯和硫化氢直接加成法生产叔十二烷基硫醇的工业试验工艺。

Factory covers an area of 45,000 square meters, fixed assets 3,000 million, with 100,000 purification workshop 10000 square meters, the main products have the use of disposable infusion set, blood transfusion, and doser, the use of disposable sterile syringes, injection needles, intravenous infusion needles and other products, annual production capacity of super-400000000, is the domestic production of disposable medical equipment for large-scale backbone enterprises.

工厂占地面积45000平方米，固定资产3000余万元，拥有十万级净化车间10000余平方米，主要产品有一次性使用输液器、输血器、加药器、一次性使用无菌注射器、注射针、静脉输液针等系列产品，年生产能力超四亿支，是国内生产一次性医疗器材的大型骨干企业。

And purification of street perpendicular to a section called dyehouse street alley, there are several special flavored barbecue main course grilled ribs, ribs tender, delicious, very biting head, although many are baked barbecue ribs, but this is my home favorite.

与纯化街垂直有条小街叫染房胡同，有几家烧烤特有味，主菜是烤熟筋，筋嫩，味美，很有咬头，虽然很多烧烤都烤筋，但这家的是我最爱吃的。

Freeing itself from the sensuous world by purification, the human soul ascends by successive steps through the various degrees of the metaphysical order, until it unites itself in a confused and unconscious contemplation to the One, and sinks into it: it is the state of ecstasis.

解放自己从感性世界的纯化，人的灵魂ascends历届步骤，通过不同程度的形而上的秩序，直到它本身的团结在一个混乱和昏迷沉思向一，和汇到它：它是国

Experimental results were as follows:①Temperature restricted the purification efficiency of Eichhornia crassipes and its root-zone microbes.

污水净化中，凤眼莲根系与微生物两者互相依赖，互相促进，在污水降解中表现出良好的协同作用[1]。

And some suggestion have been made in the use of Eichhornia Crassipes on water purification.",,"

349，&周元清&，&张丽萍&，&凤眼莲在污水净化作用中的初步探讨&，&The Research on the Function of Eichhorina Crassipes in the Treatment of Wastewater&，&凤眼莲污水净化机制&，&Eichhornia Crassipes Wasterwater Purification mechanism&，&随着经济的发展、工农业废水的排放，水体被大量污染，人们用不同的水生植物来净化污水，但实验结果表明，凤眼莲的根系能吸收有机物及其它物质，形成生物动态平衡，该生物具有耗能少，处理效果好、且美化环境的特点，它在污水净化中效率比较理想，文章综述了凤眼莲对氮、磷、重金属、BOD、COD，PH值及有机物等各类污染物的清除作用及在污染治理中的应用实践，同时对凤眼莲在废水处理和治理方面提出了相应的展望和建议。&，

Eichhornia crassipes and its root-zone microbes coordinated in pollution purification.

研究了凤眼莲净化污水时，根区微生物的动态变化。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。