作为说明的

Classical matrix groups play a prominent role in this study, not only as vehicles to illustrate general results but as primary objects of interest.

Classical矩阵群体在此研究了突出的作用，不仅作为一般的车辆，但结果说明详细，作为首要关心的对象。

MetaRuby - MetaRuby contains miscellaneous libraries for a future Ruby-in-Ruby interpreter including Array/Hash/String as abstract classes, an undo queue, a statistical time-profiler, an event loop, a modular marshaller (\"ToSource\"), a specification for a modular+reflexive+homoiconic remote call system, a declarative type system, a schema for expressing Ruby source code as proper (non-special) Ruby objects, etc.

MetaRuby含有复杂库，用于未来Ruby-in-Ruby翻译器，包括作为抽象类的阵列、散列和字符串，一个撤销队列，一个统计时间配置文件，一个事件循环，一个模块整理器（\"ToSource\"），一个用于模块＋自反＋相同图标的远程访问系统的说明，一个说明型系统，一个用于把Ruby源代码表达成固有Ruby对象，等等。

MetaRuby contains miscellaneous libraries for a future Ruby-in-Ruby interpreter including Array/Hash/String as abstract classes, an undo queue, a statistical time-profiler, an event loop, a modular marshaller, a specification for a modular+reflexive+homoiconic remote call system, a declarative type system, a schema for expressing Ruby source code as proper (non-special) Ruby objects, etc.

MetaRuby含有复杂库，用于未来Ruby-in-Ruby翻译器，包括作为抽象类的阵列、散列和字符串，一个撤销队列，一个统计时间配置文件，一个事件循环，一个模块整理器，一个用于模块＋自反＋相同图标的远程访问系统的说明，一个说明型系统，一个用于把Ruby源代码表达成固有Ruby对象，等等。

User-defined Table 0285 - Insurance company ID codes is used as the HL7 identifier for the user-defined table of values for this field.

用户说明表 0285 –保险公司标识符编码被作为适合于用户说明表的这个域的值的 HL7 标识符来使用的。

We designed a JSD-based graphical operational specification language-NUJSDL and a supporting systemNUJSDS which supports the use of the method in the practice of software development. NDJSDL has the characteristics of understandable, analysable and maintainable etc. The results of the different phases in JSD development procedures are described by the various mechanisms in NUJSDL separately.

为了支持开发者将其应用到软件开发实践中，我们设计了一种基于JSD方法的图形化的操作式规格说明语言NUJSDL，并开发了其支撑系统NUJSDS，NUJSDL语言具有易理解、可分析和可维护等特性，它提供了多种机制分别刻划JSD开发过程中各阶段的结果，并且用它书写的规格说明还可以作为待开发系统的一个原型。

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。

In the system design, the communications between epigynous PC and hypogynous SCM follows the RS-232 criterion, AT89C51 chosen as core hardware, voltage conversion circuit, display circuit, data collection circuit are introduced.

在系统设计中，上、下位机的通信采用RS—232标准，选用ATMEL公司的89C51单片机作为核心硬件，设计了电平转换电路、显示电路、数据采集电路等；软件部分采用VB6.0作为开发工具，采用模块化设计方法，对串口通信模块、滑动轴承油膜压力测试模块、打印预览模块、滑动轴承摩擦特性实验模块等模块进行了设计与说明。

Instruction: slipway is key part for stable running of belt hydroextractor, friction belt is installed on groove of slipway which is airproofed with water that can be treated as lubricant and cooling agent forming one effective vacuum airproofing.

产品说明：滑台 Slipway 说明：滑台是皮带脱水机运行是否平稳的关键部位，在滑台槽上安装了摩擦带并以水密封，密封水既可以作密封装置的润滑剂又可以作为冷却剂，形成一个非常有效的真空密封。

This thesis is therefore interested in the possibility of treating documentary rhetorically, instead of journalistically.

作者首先探讨纪录片的发展及其内涵，并说明纪录片作为一种电影类型及作为一种语艺类型的区别。

It showed that cox1 gene sequence were a section of very conservative gene sequence.So it was very suitable that cox1 was used for genetic marker of cestodes classification.

由此说明，cox1基因序列为一段非常保守的基因序列，说明cox1基因非常适合作为绦虫分类的遗传标记。

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。