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The effect of zeolites ion-exchanged by transition metals on thermal catalytic cracking reaction is studied. The product distributions of the cracking reactions catalyzed by theβor ZSM-5 zeolites exchanged with transition metals are different from that catalyzed by corresponding Hzeolites, which means the mechanism of cracking reactions has varied. Group Ⅷ metals Fe, Co, Ni and Cu, Zn are shown to be of strong catalytic activity of oxidative dehydrogenation, while Ti and Cr are not of oxidative activity. Catalyzed by zeolites or catalyst containing Ag, conversion of thermal catalytic cracking reactions and the yield of ethylene increase while the yield of propylene does not decrease. Silver can not only promote the formation of carbonium ion, but also convert carbonium ion into free-radical via redox reaction. The weak adsorption of olefins on silver reduces the occurrence of hydrogen transfer and dehydrogenation. As a result, the yield of light olefins is favored by silver in the catalyst.

采用过渡金属交换的分子筛作为催化剂，进行催化热裂解制取乙烯的反应，研究发现，在β沸石分子筛和ZSM-5分子筛中引入过渡金属后，催化热裂解反应的产物分布与相应的氢型分子筛相比有了较大的变化，说明过渡金属的加入对于催化热裂解反应的机理具有影响，Ⅷ族金属如Fe、Co、Ni和第Ⅰ、Ⅱ副族Cu、Zn表现出较强的氧化脱氢活性，产物中氢气、焦炭的产率很高，Ti、Cr则未表现出氧化作用：分子筛及催化剂中引入银后，催化热裂解反应的转化率和乙烯的产率有了提高，丙烯产率没有很大的变化，说明银在催化热裂解反应中能够促进正碳离子的生成，又有可能通过氧化-还原作用部分改变反应机理，促进了自由基的生成，并且由于银对烯烃的吸附很弱，其氢转移反应和脱氢、加氢活性比较低，有利于烯烃产率的提高。

When he came to power in 1198, Pope Innocent III was determined to suppress the Cathars. At first he tried peaceful conversion; however priests sent in to convert the Cathars met with little success.

当教皇英诺森三世在1198年掌权时，便下决心要废止Cathar教派，首先他尝试和平的使他们改变信仰，但被派往Cathar派劝说的牧师并没有得到多少成果。

It convert the rational moral knowledge, sensibility moral knowledge that the students acquired and fostered into a kind of observable, accountable, checkable experiencing action.

其旨趣在于将学生习得的理性道德知识、情性道德知识迁移、外化为一种可观测、可统计、可检验的亲历行动。

The results suggested that the chymase could convert Ang I to Angin vivo,and the radioimmunoassay method could detect the activities of ACE and chymase simultaneously with high sensitivity and credibility.

表明糜酶转基因小鼠心脏中可表达糜酶且糜酶能催化Ang II 的生成，而蛋白酶抑制剂结合放免分析是一种快速、灵敏的检测ACE及糜酶样活性的方法。

Each half has a coned section defined by an inner tapered surface (18) and an outer tapered surface (20) such that the halves convert a portion of the first and second axial acoustic energy into radial acoustic energy.

每个半部分具有由内锥形表面(18)和外锥形表面(20)确定的锥形部分，使得半部分将一部分第一和第二轴向声能转换成径向声能。

Furthermore, if it is necessary, the confirmer could convert confirmer signatures into standard ones such that the validity of these converted signatures can be publicly validated.

进一步地，在必要的时候，证实者还可以将证实签名转化为普通的数字签名，从而使得任何人都可以验证这些签名的有效性。

Features Include:-Intelligent Voice Dictation with rapid correction ability -Document Player that can convert any document into audible files for later playback -Default and Creatable Voice Shortcuts that run programs, open documents or lead to Websites at your Command -Audible Announcement of OS messages -Multiple Voices to choose from -Continuous Evolution: Constant free updates to registered users.

功能包括：智能语音听写与迅速纠正的能力，文件播放器，可以转换成任何文件声音文件供以后播放，违约和Creatable语音快捷的运行程序，打开文件或导致网站在您的命令声短片的OS邮件，多选择的声音从连续进化：免费的恒定更新的注册用户。

If things proceed as envisioned by the REDD-plus proposal, Nepal is set to convert its forests into cash, turning the saying Hariyo ban Nepal ko dhan ("Green forests are Nepal's money earner") into a reality.

如果事情有如REDD+预计的那样发展的话，尼泊尔的森林资源将能够转化为现金。使&绿色森林是尼泊尔的摇钱树&这句话变为现实。

VinylStudio is an easy to use, purpose-built application designed to digitalize or convert vinyl albums and tapes.

vinylstudio是一个易於使用，为特定目的而建造的应用设计数字化，或将其转换乙烯基相册和录音带。

This dissertation is based on the historical development and the current situation in Pingyao's tourism market, through tourists' poll on the spot and internet, analyzes the overall constitution of the tourists generating market of Pingyao by means of combination of economic and geographic measures through the view of spatial scale and demography, including the total amount of the tourists in Pingyao, the constitution of realistic tourist generating market and potential tourist generating market, the nature of the tourist generating market in Pingyao. The thesis establishes an ACD matrix with the occupation of tourist as a main factor to analyze the relationship between tourist flows and their occupations, with the combination of quantitative and qualitative method to take an insight into the tourist segments selected, in the hope of advising a scientific measure and practicable basis for future development of Pingyao's tourism industry in order to convert the present dilemmatic situation to an optimization.

数据发布平台，依据淡季和春节对平遥旅游者抽样调查问卷资料、网络电子邮件问卷和其他有关历史和现状资料，采用地理分析与市场分析相结合的手段，从空间尺度、人口学特征等方面综合分析了平遥旅游客源市场的总体特征：平遥旅游市场总量状况、现实客源地和潜在客源地构成现状、平遥旅游客源市场的基本特征；对以客源地作为平遥细分市场的分析方法进行了研究，构建出ACD矩阵指导目的地对客源地的选择和细分，进而描述性说明每一类客源地细分市场进入细分选择的依据；将职业特征作为人群细分的标准，通过说明职业特征的高度相关性，以职业细分了平遥的客源市场，定量和定性相结合，分析每一类入选的细分人群，为平遥旅游客源细分市场提供科学的方法，作为平遥下一步开发旅游产品、设计旅游项目的依据，以实现平遥旅游资源的优势转化。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐