性能

Acid properties of natural rubber have a certain, temperature should not exceed 60 ℃; chloroprene rubber has the capability of certain pH, temperature 80 ℃; nitrile rubber oil, available to 80 ℃; fluorine rubber, good corrosion resistance, temperature performance is stronger than rubber, can be used at 150 ℃ medium.

天然橡胶有一定耐酸碱性能，使用温度不宜超过60℃；氯丁橡胶也能耐某些酸碱，使用温度80℃；丁腈橡胶耐油，可用至80℃；氟橡胶耐腐蚀性能很好，耐温性能也比一般橡胶强，可在150℃介质中使用。

It is demonstrated that the chiral quaternary ammonium salts catalysts exhibit promising catalytic properties for the substrate. Part III: The synthesis and the characterizing of the macroporous aminomethyl resin-supported cinchona alkaloid complexes and the study on its catalytic properties The part consists of two subsections. the macroporous aminomethyl resin -supported cinchona alkaloid complexes were synthesized by the stuff (cinchonine, quinine and macroporous aminomethyl resin). Their structures were characterized by means of elemental analysis, XPS, TG/DTA; the chiral polymer-supported complexes were first used as catalysts for the reduction of ketones. Their catalytic properties for the reduction processes were investigated. The comparison of the products e.e., the conversion of the substrate among different reduction processes was employed with determined by HPLC. The effects of the time, the temperature, the ratio of catalyst to substrate, reaction solvent as well as the recycle times were also discussed.

第三章聚-4-氨甲基苯乙烯负载金鸡纳碱金属络合物的合成与表征及其不对称催化性能研究本章分为两节，以辛可宁和奎宁及聚-4-氨甲基苯乙烯为原料，合成了4种聚-4-氨甲基苯乙烯负载金鸡纳碱络合物催化剂，并对它们的结构用元素分析、X-射线光电子能谱、TG/DTA等几种测试手段进行了表征；首次将所合成的手性高分子负载的金属络合物用于催化芳香酮不对称还原反应，详细研究了所得的手性高分子负载的金属络合物对不同底物的催化性能，用HPLC等分析手段定量检测了还原过程的底物转化率及其产物对映异构体选择性，并考察了反应时间、反应温度、催化剂和底物投料比、反应溶剂和循环次数对催化性能的影响。

This study adopts PCR method of coagulase - and sequencing RouGe detection a fragment of gene ESR polymorphism, and its single-nucleotide polymorphisms egg and correlation analysis, explore properties with different genotypes RouGe egg performance, from the relationship between genetic level RouGe reveal candidate function mechanism of molecular genetics of egg performance, RouGe new strains of selection for the use of genetic material.

本研究采用PCR-SSCP和测序的方法检测肉鸽ESR基因某一片段的多态性，并将其单核苷酸多态性与产蛋性能进行相关性分析，探索不同基因型与肉鸽产蛋性能之间的关系，旨在从候选功能基因层次揭示肉鸽产蛋性能分子遗传机理，为肉鸽新品系的选育提供可借鉴的遗传资料。

The results show that proper RRA heat treatment can improve SCC properties with retention of the high strength of T6 level. After preaging at 100℃for 24 h, retrogression at 200℃for 7 min, and reaging at 100℃for 24 h, the ultimate tensile strength, yield strength and elongation of the alloy are 795 MPa, 767 MPa and 9.1%, respectively. Meanwhile the failure time of the alloy applied to tensile strength of 210MPa in 3.0%NaCl+0.5%H2O2corrosion condition is longer than 720 h. The corresponding TEM observation shows that after retrogression for 7 min and re-aging treatment, the microstructure of grain boundary is similar to that treated in the T73 condition with coarsen and isolated distribution, and the microstructure inside grain is similar to that treated in the T6 condition with small and homogeneous distribution.

研究结果表明：在峰值时效T6状态下合金强度高，但抗应力腐蚀性能差；采用合适的RRA热处理工艺既能使合金保持T6状态下的高强度的同时，又能显著改善合金的抗应力腐蚀性能；经回归7 min RRA处理后合金的晶界类似T73态析出相聚集粗化，而晶内类似T6态析出相细小弥散分布，在拉伸应力为210 MPa和3.0%NaCl+0.5%H2O2腐蚀液中，其断裂时间大于720 h，相应的抗拉强度、屈服强度和延伸率分别为795 MPa， 767 MPa和9.1%，显示优越的综合性能。

The results show that proper RRA heat treatment can improve SCC properties with retention of the high strength of T6 level. After pre-aging at 100 ℃ for 24 h, retrogression at 200 ℃ for 7 min, and reaging at 100 ℃ for 24 h, the ultimate tensile strength, yield strength and elongation of the alloy are 795 MPa, 767 MPa and 9.1%, respectively. Meanwhile the failure time of the alloy applied to tensile strength of 210 MPa in 3.0%NaCl+0.5%H2O2 corrosion condition is longer than 720 h. The corresponding TEM observation shows that after retrogression for 7 min and re-aging treatment, the microstructure of grain boundary is similar to that treated in the T73 condition with coarsen and isolated distribution, and the microstructure inside grain is similar to that treated in the T6 condition with small and homogeneous distribution.

研究结果表明：在峰值时效T6状态下合金强度高，但抗应力腐蚀性能差；采用合适的RRA热处理工艺既能使合金保持T6状态下的高强度的同时，又能显著改善合金的抗应力腐蚀性能；经回归7 min RRA处理后合金的晶界类似T73态析出相聚集粗化，而晶内类似T6态析出相细小弥散分布，在拉伸应力为210 MPa和3.0%NaCl+0.5%H2O2腐蚀液中，其断裂时间大于720 h，相应的抗拉强度、屈服强度和延伸率分别为795 MPa， 767 MPa和9.1%，显示优越的综合性能。

The results show that proper RRA heat treatment can improve SCC properties with retention of the high strength of T6 level. After pre-aging at 100℃ for 24 h, retrogression at 200℃ for 7 min, and reaging at 100℃ for 24 h, the ultimate tensile strength, yield strength and elongation of the alloy are 795 MPa, 767 MPa and 9.1%, respectively. Meanwhile the failure time of the alloy applied to tensile strength of 210 MPa in 3.0%NaCl+0.5% H2O2 corrosion condition is longer than 720 h. The corresponding TEM observation shows that after retrogression for 7 min and re-aging treatment, the micro- structure of grain boundary is similar to that treated in the T73 condition with coarsen and isolated distribution, and the microstructure inside grain is similar to that treated in the T6 condition with small and homogeneous distribution.

研究结果表明：在峰值时效T6状态下合金强度高，但抗应力腐蚀性能差；采用合适的RRA热处理工艺既能使合金保持T6状态下的高强度的同时，又能显著改善合金的抗应力腐蚀性能；经回归7min RRA处理后合金的晶界类似T73态析出相聚集粗化，而晶内类似T6态析出相细小弥散分布，在拉伸应力为210 MPa和3.0%NaCl+0.5%H2O2腐蚀液中，其断裂时间大于720h，相应的抗拉强度、屈服强度和延伸率分别为795 MPa，767 MPa和9.1%，显示优越的综合性能。

That is of instruction meaning for the development of systemcolorant and can provide reference for the establishment oftechnology specification about system colorant .

从色浆的颜色体系、色浆技术、颜色接受性、对基础漆性能的影响、环保性能以及色浆本身的性能指标等方面说明色浆的评价评估方法，同时对开发系统色浆也有一定的指导意义，并为今后制定相应技术规范提供参考依据。

Meanwhile,The distributed pattern of PURF particles is observed by microscope.The results show that the bearing capacity of cellular columniation is evidently improved by the infilling of additive.With the increasing content of additive,the compress strength of PURF was effectively enhanced f...

实验结果表明，泡孔支柱处的增强剂加强了其承载能力，有利于压缩性能的提高；随着增强剂用量的增加，PURF压缩强度和模量先增加后降低，即增强剂用量处于最佳用量范围内时，PURF体现最好的压缩性能；并随着纯聚氨酯硬质泡沫塑料密度的增加，其压缩性能有显著的提高。

By the theories of cavitations and free volume, it analyses the factors on lubricant low-temperature property in view of molecule structure, brings up effective ways to improve the low-temperature properties, conducts plenty of testing with even designs, and then investigates and tests the lubricant's low-temperature properties with computerized system; it analyses the data by regressi on method and optimizes the solving, and studies on the base oil of environment friendly lubricants and selects the composition of colza oil, esters and PAO2, and discusses on low-temperature flowability of vegetable-base lubricants.

应用空穴理论及自由体积理论，从分子结构角度分析了影响润滑油低温性能的因素，提出了改善对润滑油低温性能的有效途径，组织了大量试验，通过润滑油的计算机检测系统对润滑油的低温性能进行了分析检测，采用均匀设计来组织实验；用逐步回归对数据进行分析并且进行最优化求解，对环境兼容润滑油的基础油进行了分析研究，选择菜籽油、季戊四醇酯和聚α-烯烃作为基础油，并从理论上对植物基润滑油的低温流动性进行了探讨。

By the theories of cavitations and free volume, it analyses the factors on lubricant low-temperature property in view of molecule structure, brings up effective ways to improve the low-temperature properties, conducts plenty of testing with even designs, and then investigates and tests the lubricants low-temperature properties with computerized system; it analyses the data by regression method and optimizes the solving, and studies on the base oil of environment friendly lubricants and selects the composition of colza oil, esters and PAO2, and discusses on low-temperature flowability of vegetable-base lubricants.

应用空穴理论及自由体积理论，从分子结构角度分析了影响润滑油低温性能的因素，提出了改善对润滑油低温性能的有效途径，组织了大量试验，通过润滑油的计算机检测系统对润滑油的低温性能进行了分析检测，采用均匀设计来组织实验；用逐步回归对数据进行分析并且进行最优化求解，对环境兼容润滑油的基础油进行了分析研究，选择菜籽油、季戊四醇酯和聚α-烯烃作为基础油，并从理论上对植物基润滑油的低温流动性进行了探讨。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。