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The convert efficiency of the catalyst declined 10% in first two years and then it is 2% after another two years,when it is used interruptedly.

目前用于该工艺中相转移的关键材料———疏水催化剂主要集中在Pt-C-PTFE[1~3]和Pt-SDB[4，5]两类疏水催化剂上，且大部分都已形成了各自的研制专利。

Secondly, it is not the same fractal diagram by the same codes of IFS to produce fractal diagram. The two graphs are extraordinary similar, but they are different in detail. The problem is researched and the algorithm which calculates the intersection points of two graphs created by the same coefficient of the IFS is proposed. The curve described changing of the intersection points number is drawn. The conclusion is that the curve fluctuates in the tiny range and is smooth when it is seen as a whole. In fact, the curve is a fractal curve.

其次，针对同一IFS迭代码两次迭代绘制得到的分形图并非完全相同这一问题展开研究，提出了IFS分形覆盖相交交点变化曲线的概念，给出了覆盖相交交点变化曲线的绘制算法，在此基础上进一步研究了分形覆盖相交交点变化曲线的变化率情况，得到了分形覆盖相交交点变化曲线宏观上比较光滑，但实际上小范围内异常波动的实验结果。

The intersexual aggression of male was significantly higher than the intersexual aggression of female and the intrasexual aggression of male. There was significant difference about male's aggression between two groups; but for female, there was no significant difference. The combat occurred intensely when two females met whether in male vs female or female vs female, but were both higher than the intrasexual aggression of male. With the increasing of meeting time, the male and female in female vs female decreased their aggression; the female in female vs male kept its aggression in high level. The component of aggression was resembled to the exhibition of aggression in every group.

同性个体间雄性动物的攻击水平显著高于同性个体间雌性动物的攻击水平和异性个体间雄性动物的攻击水平；同性个体间雌性动物的攻击水平和异性个体间雌性动物的攻击水平没有差异，但两者均高于异性个体间雄性动物的攻击水平；雄性动物和雌雌组中雌性动物的攻击行为均随着熟悉程度的增加而减弱；雌雄组中雌性动物的攻击行为在各时间段的差异不大。

A comparative study of pollen floras between two cores: Core 17940 from the northern slope of the South China Sea and a core from the Toushe Basin in central Taiwan Province, reveals that there were three different vegetation types around the two areas during 15-40kaBP. The first type is characterized with the subtropical evergreen broadleaved forest during MIS2 (20-15kaBP). The second is the Pinus/Alnus-dominated woody plant communitites, corresponding to an interstadial summer monsoon dominated warm and humid climate and higher sea/lake level. The third is the Artemisia/Poaceae-dominated herb communities, corresponding to a stadial winter monsoon dominated warm and dry climate and lower sea/lake level.

根据南海北部17940孔和台湾中部头社孔孢粉序列对比结果，首次提出了华南地区15-40kaBP期间的三个具代表性植物群：1以青栲类为主的亚热带常绿阔叶林为第1植物群，该植物群在MIS2阶段(20-15kaBP)，为南海北部周边地区和台湾中部头社盆地周围地带性植被；2以松属或桤木属为主的木本植物为第2植物群，对应于间冰阶，夏季风盛行，降水充沛，气候暖湿，高海面；3以蒿属或以禾草为主的草本植物为第3植物群，对应于冰阶，冬季风盛行，降水少，气候暖干，低海面。

It will be noted that between the two layers there exist interstices of two types: tetrahedral and octahedral.

要注意两层之间有两种类型的空隙：四面体型和八面体型。

This article introduces two ways of making the visual interface of the software of fibra intertwist tension system-pulldown menu design、 graphics menu design,which tells detailedly of the traits、structures and making procedures of two menus ,and finally gives illustrations and some program codes.

介绍了通过可视化编程工具 Visual Basic6 。0制作关于纤维缠绕张力制度软件可视界面的两种方法，下拉式菜单设计、图形化菜单设计。

Uncertain temporal relations can be represented and reasoned by IA. IA has strong expressive ability in tense, and it can represent all natural temporal relations. At the same time, temporal relation represented by IA is highly visual and comprehensive. In additional, IA has been extended from one-dimension temporal area to two-dimension spatial area, that is to say, interval algebra can be developed to rectangle algebra for two-dimension reasoning.

用区间代数能表示不确定的时态关系，可以很方便地用于时态推理，表达能力强；时态关系的区间表示比较直观，可理解性强；同时区间代数可以进一步扩展到二维空间领域，即将区间代数拓展为矩阵代数，实现二维空间推理。

In order to make transformation between two temporal logics, we develop other two predicates to manipulate the interval. Their function is f: I→〓.

为实现两种时间语义的统一，ISITL定义了两个形式语义为f：I→〓的函词来实现对时段的各种操作。

In an visibility analysis sight, expressed avoids in this scenic spot sight scope planted agent constructing some not beautiful artificial facility or carrying on the artificial destruction, but may establish some appropriate artificial scenic spots, builds the scenic forest and so on; The line sight is a set which regards by the innumerable spots is composed, because the traffic lane is the tourist mainly watches during the route, in its sight scope landscape exquisite degree has directly affected scenic area comprehensive esthetic sense; Two intervisibility, contained two scenic spots respectively to see the region scope, as well as building the exquisite landscape in the public sight.

可视性分析中的一点视域，表示在这个景点视域范围内应避免建设一些不美的人工设施或进行人为破坏，但可以设置一些合适的人工景点，营造风景林等：线视域，可以看作是由无数个点视组成的集合，因为车道是游人的主要观赏路线，其视域范围内的景观优美程度直接影响了景区的综合美感度；两点通视，包含了两个景点各自看到的区域范围，以及在公共视域营造优美景观。

Currently, there are mainly two types of financial systems, which are Bank-Oriented System and Market-Oriented System, They collocate resource and promote economy-growth through each relatively-advantage function, and Interweavement and Inter-assimilating Phenomena take place in the developing course of the above two types of financial systems.

当前，主要存在着银行主导型和市场主导型两种金融体系，它们发挥着各自的比较优势功能来进行资源配置和促进经济增长，并且两种金融体系发展中呈现出相互交织与吸收的景象。

Those who loved reading were obliged to send for their books from England; the members of the junto had each a few

那些喜欢看书的人就得从英国购书，讲读俱乐部的的成员每人都有几本。

Three fourths of the earth's surface is covered with water.

地球表面的四分之三被水覆盖着。