二聚

Th e tissues were immediately fixed by using one of the following fixatives for 24 hours before conventional tissue processing:(1)2.5%glutaraldehyde and 2%polyf ormaldehyde;(2)2.5%glutaraldehyde and 0.5%cetylpyridinum chloride to fix mainly the glycosaminoglycan;(3)2%OsO4 to fix the phospholipids (PH1);(4)4%OsO4 (PH2) and (5) 3%tannic acid.

取正常大鼠腹膜组织，分别以不同固定液固定：(1)2.5%戊二醛和2%多聚甲醛；(2)2.5%戊二醛和0.5%氯化十六烷基吡啶；(3)2%OsO4(PH1组)；(4)4%OsO4(PH2组)；(5)3%鞣酸。

This article describes the present situation of high-pressure and low-pressure flash tank ,gas-liguid separator and purified gas filter.

详细介绍了聚乙二醇二甲醚脱硫脱碳装置中脱硫富液、脱碳富液的高、低压闪蒸槽以及气液分离器和精制气气体过滤器的生产现状，分析了这些设备出现瓶颈的原因，同时提出了相应的扩能改造的基本思路和方法，最后总结了改造的效果。

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。

DM is mainly used as high-boiling point solvent for printing ink, dyestuff, resin, cellulose and painting.

二乙二醇丁醚醋酸酯有着十分高的沸点，主要用于高温烤瓷以及印刷油墨的高沸点溶剂，也用作乳胶漆的助聚结剂；由于该溶剂挥发速度很慢，在水中溶解度低，所以可作为丝网印刷油墨的溶剂，以及聚苯乙烯涂料印花釉的溶剂；也可作为共沸剂用于醇与酮的分离。

objective: to prepare the molecularly imprinted composite membranes with propofol as template.methods: with the ultraviolet light and initiator, template molecular propofol, functional monomer methacrylate and crosslinking agent ethylenegly-coldimethacrylate formed molecularly imprinted composite membrane through polymerization on the surface of polyvinyli-dene fluoride microporous membrane.inspection of the combination of template molecule and functional monomer, characterization of the membrane surface morphology with scanning electron microscopy.results: the morphology of composite membranes was well.propofol bonded to methylacrylic acid with hydrogen bond.conclusion: the method of ultraviolet light-struck is feasible for preparation of molecularly imprinted composite membranes with propofol as template.

目的：制备异丙酚分子印迹复合膜。方法：在紫外光照和引发剂的作用下，模板分子异丙酚、功能单体甲基丙烯酸和交联剂乙二醇二甲基丙烯酸酯在聚偏氟乙烯微孔滤膜表面聚合形成分子印迹复合膜，考察模板分子和功能单体的结合特性，用扫描电镜表征膜的表面形态。结果：复合膜形态良好，异丙酚和甲基丙烯酸以氢键的方式缔合。结论：用紫外光照射法可以制得异丙酚分子印迹复合膜。

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。

Methods: After the sample being digested, because of ethylenediamine-hydrochloric acid, aluminium, chrome azurol S, the polyethylene glycol octyl phenyl ether together with hexadecylpyridine bromide form a steady blue quaternion system, whose absorbance and aluminium content is direct ratio within some consistence range.

样品经消化后，在乙二胺－盐酸缓冲介质存在下，铝与铬天青S和聚乙二醇辛基苯醚及溴代十六烷基吡啶形成稳定蓝色四元体系，在一定浓度范围内，其吸光度与铝含量成正比。

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。

A series of sulfonated poly(arylene thioether phosphine oxide)s with various degrees of sulfonation was prepared by polycondensation of 4,4'-thiobisbenzenethiol with the mixture of sBFPPO and BFPPO at different ratios. The effect of IEC on the properties of the products was studied.

以BFPPO、sBFPPO和4，4'-二巯基二苯硫醚为单体，通过改变BFPPO/sBFPPO的配比，合成了一系列不同磺化度的磺化聚芳硫醚三苯基氧膦，考察了IEC对产物性能的影响。

Polyborosilazane, a precursor to SiBNC ceramic, was synthesized via cocondensation approach using methyldichlorosilane (MeHSiCl2), boron trichloride (BCl3) and hexamethydisilazane as starting materials. SiBNC ceramics were obtained by pyrolysing the as-synthesized PBSZ in N2 or NH3/N2 atmospheres.

以甲基氢二氯硅烷、三氯化硼、六甲基二硅氮烷为起始原料，采用共缩合原理合成了聚硼硅氮烷先驱体，将PBSZ分别在N2和NH3/N2气氛中高温热解得到SiBNC陶瓷。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。