二聚的

The concept of genetic algorithm, its configuration, operators and existing problems are introduced in this paper. A new algorithm for clustering analysis is presented based on genetic algorithm. There are two characteristics in our approaches. Firstly, the algorithm is the general-purposed and our clustering analyzer can cluster large data set with mixed numeric and categorical attributes.

4介绍遗传算法的概念、算法结构、运算算子及主要存在问题；提出了一种基于遗传算法的聚类新方法MGA，该方法有两个主要优点：一是通用性强，可以对包含数值属性和符号属性的大数据集进行聚类；二是提高了数据挖掘的效率与质量。

In this paper six kinds of alkyl polyamine polymers which were polyethylene glycol of molecular weight of 400, 600 and 1,000 modified with ethylenediamine or diethylenetriamine were synthesized, and the effects on ink absorption speed, definition and image quality of ink-jetprinting coating layer were studied. At the same time, the better coating formula were found.

本论文合成了六种烷基多胺——乙二胺和二乙三胺改性分子量为400，600以及1000的聚乙二醇所得到的产物，并且研究了它们对喷墨打印材料吸墨涂层的吸墨速度、清晰度及影像质量的影响，最后找出比较理想的涂层配方。

The optimum conditions of synthesis were determined as follows:molar ratio of 2,4-di-t-amylphenol and anhydrous trimeric acetaldehyde 2∶1.2,amount of water 180 g,amount of emulsifier 0.5 g,and amount of catalyst 11.0 g at reacting temperature 80～83℃ for 5 h.

以2 ，4-二叔戊基苯酚、无水三聚乙醛为反应原料，采用含有表面活性剂、酸性催化剂的水作为反应溶剂，缩合反应合成2，2′-亚乙基双(4，6-二叔戊基苯酚)。

An expansion monomer 3, 9-dihydroxymethyl-di (6-methyl-5 -hydroxyl)-2- heptanone-1, 5, 7, 11tetraoxaspiro [5, 5] undecane was synthesized and its volume change during polymerization is about +3.04%. Its prepolymer was also synthesized by toluene 2, 4-diisocyanide with it.

由三经甲基丙烷合成了螺环原碳酸酯单体3'、9'－二羟甲基－3'，9'-二乙基－1，5，7，11－-四氧杂螺环[5、5]十一烷单体（体积膨胀率＋3.04%）以及它的预聚物，并用其来改性环氧树脂B-63。

A study has been made on Synthesis of poly with diphenyl ether and terephthaloyl chloride as reactants, 1,2 dichloroethane as solvent, and aluminum chloride as catalyst.

研究了以1，2－二氯乙烷为溶剂，以无水三氯化铝／DMF为复合催化剂体系，在温和条件下，以二苯醚和对苯二甲酰氯为原料合成高分子量聚醚酮酮的方法。

Industrial synthetic oils currently us a variety of base oils, such as PAOs, diesters, polyalkylene glycols, and phosphate esters, among others.

工业合成油目前我们的基础油，如公共事务干事，二酯，聚亚烷基乙二醇，磷酯等，品种。

A new type of polyaspartic esters secondary amine called PAE-b was prepared from prime amine 4,4'-methylenebis and dialkyl maleates via a Michael Addition Reaction.

通过伯胺4，4'-二氨基环己基甲烷与马来酸二乙酯的Michael加成反应，合成1种新型聚天门冬氨酸酯仲胺。

Kinetics of hydroxyl-terminated polybutadiene/ phenyl isocyanate, bonding agent (BA-5)/PI and antioxidant H/PI were studied in toluene/dimethyl sulphoxide solution. The rate constants and the activation parameters were calculated. The results show that the reactionary rate of these three active hydrogen components decreased in same condition.

分别对端羟基聚丁二烯/苯异氰酸酯，键合剂(BA-5)/PI和防老剂H（N，N'-二苯基对苯二胺）／PI在甲苯／二甲基亚砜混合溶液体系中进行了反应动力学研究，计算了相应体系的反应速率和活化能。

Companies to provide long-term grade of phosphate rock, phosphoric acid, sodium hexametaphosphate, sodium tripolyphosphate, sodium fluorosilicate, sodium fluoride, SnO, tin sodium, stannous chloride, chlorine dioxide tin, etc. more than twenty kinds of products.

公司长年提供各种品级的磷矿、磷酸、六偏磷酸钠，三聚磷酸钠，氟硅酸钠、氟化钠，氧化亚锡，锡酸钠、氯化亚锡、二氧化锡等二十余种产品。

The electrochromic properties were measured in a three-electrode cell with a 1 mol/L LiClO4 /propylene carbonate electrolyte by spectrophotometer and electrochemical work station.

采用溶胶-凝胶工艺，在镀有ITO透明电极的聚对苯二甲酸乙二酯基体上制备了MoO3电致变色薄膜。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。