配基

Using slow-adding and fast-agitating method, protective coating is prepared by adding proper filler, plasticizer, curing agent, solvent and so on, then the formula is optimized according to analysis of the performance of self-production and other production made at home and abroad, including appearance, viscosity, solid content, corrosion resistance, etching ratio, compactibility, bonding force and peelable ability.

在基料中配以合适的填充剂、增塑剂、固化剂和溶剂等，采用慢加快搅法制备此种涂料，并通过对比自制涂料和国外化铣保护涂料的性能及分析数据，即外观、黏度、固体含量、抗蚀性、浸蚀比和致密性，优化保护涂料的配方。

There is a polarized organelle, Golgi complex consisted of several saccules and some vesicles beside the nucleus and there are some osmiophilic bodies beneath the parasite pellicule.

结果表明，配子体是一渐进发育的单核、惰性虫体，其核旁有一个由扁平囊和泡状小体极性排列组成的细胞器———高尔基体，虫体被膜下有嗜锇小体。

A pentacarbonyl complex (3) isolatedfrom the same reaction from which the complex (1) is obtained, whose accuratestructure is yet known, is preliminarily studied.

对从含吡啶基团的二硫醇三齿配体与Fe_3_(12)的反应中得到的另一个准确结构有待确定的五羰基化合物(3)进行了初步的性质研究及表征。

The results showed that terephthalic acid in the carboxyl oxygen and the phenanthroline nitrogen atoms with transition metal ions (Co2 +, Cu2 +, Fe3 +) coordination.

结果表明，对苯二甲酸中羧基氧和邻菲罗啉中的氮原子均与过渡金属离子（Co2+、Cu2+、Fe3+）配位。

It is possible to produce low-titanium aluminum alloy directly. Three months of periods of industrial test for production low-titanium aluminum alloy was conducted using the 80kA prebake electrolysis cells. The test results showed that the electrolysis cell can work stably, and the effect of TiO2 added into electrolyte on electrolytic process parameters, current efficiency, consumes of materials and energyare trifling. The titanium content in alloys is stable and the absorbility of Ti is high. The microstructure of electrolytic low-titanium aluminum alloy is homogeneous. The grain refinement effect is excellent comparing with that of alloys added titanium by melting Al-Ti master alloys and both alloys have the same grain refinement trend.

在80KA中型预焙电解槽上进行了为期三个月的低钛铝合金的工业试验，结果表明，电解槽工作状态稳定，TiO_2的加入对电解槽的主要工艺参数、电流效率、物料和能源消耗影响不大，合金的钛含量稳定，钛的吸收率高；所生产的电解低钛铝基合金的微观组织均匀，晶粒细化效果好，与熔配加钛的细化规律相同。

This thesis mainly focuses on overcoming the substrates limition of the present catalytic systems,low catalytic efficiency,and application in total synthesis.1.Conveniently synthesized sulfonamide alcohol titanium complex has been used to catalyze the asymmetric addtition of methyl propiolate to various aromatic and aliphatic aldehydes with high enantioselectivity.

本论文即针对现有催化体系的底物局限性、催化效率低、应用研究少等展开研究：1、我们将简便合成的磺酰胺基醇配体-钛催化体系应用于催化丙炔酸甲酯对各类芳香醛及脂肪醛的不对称加成取得了理想的结果。

This dissertation involves the syntheses, reactivities and structures ofGroup 6 metal carbonyl complexes containing the pyrazole ligands.

本论文开展了对含吡唑类配体的VIB金属羰基配合物的合成、反应及结构的研究，合成了70余个新化合物，并取得了如下研究成果。

However, three isomers are obtained when [3(5)-〓-5(3)-MeS]pyrazole or[3(5)--5(3)-MeS]pyrazole reacts with 〓 in the same conditionpossibly owing to the influence of both the steric and electronic factors.

通过配体与〓的光化学反应，首次分离得到了不对称取代的双吡唑烷VIB金属配合物，但3位取代基的立体位阻减弱了双吡唑烷与〓的反应。

A half-sandwich complex (N1) with pendant quinolyl group was successfully synthesized. The 〓HNMR spectrum indicated that the nitrogen atom was coordinated to the titanium center in this complex in solvent.

成功地合成了一个侧链含喹啉基的半夹心茂钛络合物，〓HNMR显示此络合物上的N原子与钛金属中心配位。

Ridging Hedta(superscript 3-) anions between Bi atoms and Pr atoms result into a novel infinite 3D network structure.

i-Pr间通过配阴离子Hedta(上标 3-)中4个羧基的桥联作用构建配合物的3D结构。

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。