成对

In chapter 6, the passivation film formation、charge transfer across the carbon/passivation film interface and the diffusion of lithium in solid for the 650℃ and 900℃ PPP-based carbons are investigated by ac impedance.

讨论了电解液的组成对碳电极上成膜过程的影响，钝化膜的生成、气体的放出和电化学嵌入反应是三个相互竞争的过程，含脂类的溶剂倾向于成膜。

In addition, this thesis also discussed in detail the different elements that influence quality of color flow imaging quality.

除此之外，本论文还详细探讨了彩色血流成像中的不同因素对成像质量的影响。

We discuss and analyze the reassignment result of the cross signal. According to the diffenernt kind of signals, we present the principle of the selection of width of kernel.

利用这种改进的时频分布对目标回波进行分析，信号交叉项被抑制，信号集聚度大大提高，在成像过程中，得到瞬时成像结果质量改善非常明显。

Analysis is made on block effect to cutters of PDC bit with 3 factors: different top shape,cutter-distributing and wearing degree.By the interaction(radial range and altitude difference of each cutter) of three adjacent cutters,the cutter block is further analyzed with these factors,but wearing degree is simplified to be considered as the cutters vertical to the assembling plane.

中文摘要：对PDC钻头冠部形状及不同的布齿密度和切削齿在不同的磨损状态下对PDC钻头切削齿受力的影响进行了分析；用相邻的3个切削齿之间的关系（不同的切削齿与切削齿之间的径向距离和切削齿之间的高度差）来分析PDC钻头冠部形状和切削齿布齿密度对切削齿受力的影响，以及将切削齿的磨损状态简化成与切削齿在钻头上装配方向垂直的平面来分析切削齿磨损状态对切削齿受力的影响。

The deep cultivation-root cutting in before winter stage would increasethe weight and ratio of root system in middle and lower layer,the resultswould decrease the root redundancy.

冬前深耘断根可增加中、下层根系的重量和比率，降低根系生长冗余性，控制最高总茎数，提高成穗数及成穗率，使籽粒产量中来自花后光合器官输送的比例增加，从而使产量提高，因而在旱地高产麦田应推广冬前深耘断根。6研究了降水量对旱地高产小麦耗水规律及产量的影响，拔节前降水多且占比重高，土壤供水量及占比重少，拔节后降水量减少且占比重低，土壤供水量及占比重高，利于在旱地高产麦田形成高产。

METHODS The membranes of Eudragit L100-55 were prepared and investigated,capsules were prepared by a dipping process,in vitro release test was taken and acetaminophen was uesd as the model drug.

方法考察 Eudragit L100-55成膜性能，以其作为囊材，使用蘸胶-成膜法制备胶囊壳，采用对乙酰氨基酚作为模型药物，考察体外释放。

This paper deals with the mineral chemistry of amphiboles and feldspars in the complex to demonstrate the temperature and pressure conditions of crystallization.

本文通过对刘家洼杂岩体角闪石、长石矿物化学的研究，揭示岩体形成时的温度为 73 0～ 81 0℃，而结晶压力变化于 6.6× 1 0 8～ 2 。2× 1 0 8Pa之间，表明在该岩体形成过程中，经历了明显的剥露作用。

Several tens of superlarge hydrothermal gold deposits related to volcano subvolcanic rocks have been defined in the world since 1980s. It is of great importance, both economically and theoretically, to study this type of gold deposits. The newly discovered Jinchang gold deposit, Heilongjiang Province, is one of this type of gold deposits, which is hosted by breccias bodies that are associated with volcano-subvolcanic rocks. More than 30 t Au resource has been proved after preliminary exploration by the 5〓 Geological Party of Gold Headquarter.

中文题名黑龙江省东宁金厂金矿床综合地质异常及找矿评价副题名外文题名 Comprehensive geological anomaly and exploring evaluation of the Jinchang gold deposit，Dongning，Heilongjiang province 论文作者朱成伟导师崔彬教授学科专业矿物学、岩石学、矿床学研究领域\研究方向成矿系列与成矿预测学位级别博士学位授予单位中国地质大学学位授予日期2001 论文页码总数75页关键词金矿床金厂金矿综合地质异常找矿评价馆藏号BSLW /2003 /P618.51 /5 80年代以来，国内外发现的与火山-次火山有关的浅成热液型特大型金矿床数十处，具有很大的工业价值和找矿前景，对该类型金矿进行深入研究具有重要的理论和实际意义。

Besides,changes of calcium and calmodulin before and after flower differentiation in strawberry were discussed herein.

本文还对成花前后Ca2+、CaM和成花物质含量的动态、Ca2+－CaM系统和草莓花芽分化之间的关系等问题进行了讨论。

A base-catalyzed novel olefination methodology based on elimination of p-toluenesulfonamide:Treatment of diethyl cyanomethylphosphonate with catalytic amount of basegave the corresponding phosphoryl-stabilized carbanion, which added to the carbon-nitrogen double bond of N-tosyl imines.

新形成的氮负离子进一步攫取另一分子膦酸酯的活泼亚甲基氢形成加成产物同时再生出膦酰基稳定的碳负离子。加成产物消除对甲苯磺酰胺，高度立体选择性地得到-α-氰基-β-芳基-乙烯基膦酸二乙酯。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。