介绍情况的

Based on the drilling operation of 4 Wells, this article describes the basic characteristic of coalbed methane and technical difficulties in drilling. Some technical keys as borehole quality, fresh Water drilling,fresh water coring, coal-bed methane protection are solved through application of a series of techno1ogical measures such as optimization of rock bit, optimization of drill stem, optimization of drilling parameters and string coring and etc. The experimental performance, especially in fine-grained ...

本文以四口井的施工为例，着重介绍了煤层气井的特点，并指出了钻煤层气井的几个技术难点，通过钻头优选，钻具优选，钻井参数优选，绳索式取心技术等的现场实施和应用，基本解决了井身质量，清水钻井，清水绳索取心，煤层气保护等几个方面的技术难题，文中还介绍了使用中原油田自行设计的中原9508绳索取心工具的取心情况，尤其是在粉煤层地区的取心情况，这将为今后的煤层气开发打下坚实的基础。

The first part mainly introduces the Zuotou Graves. Here the graves situation has not been presented in a simply enumerative way, but on the basis of excavated instance of belthooks, the graves with funerary objects are divided into 3 classes: the Graves with belthooks as only funerary objects, the Graves with belthooks included in funerary objects and the Graves without belthooks as funerary objects. This effort offers convenience to the further research on belthooks.

第一章主要是对作头墓葬的介绍，在这里没有对墓葬情况做简单排比介绍，而是根据带钩在墓葬中的出土情况，把有随葬品出土的墓葬分为：仅有带钩出土的墓葬、出土物中包括带钩的墓葬和随葬物中无带钩出土的墓葬三类，为后文带钩的研究提供了便捷。

At the same time this paper introduced the surface craft to resist wear of the plastic extruding machine's screw which was similar to the expeller by the contour structure and the working condition in domestic and foreign,pressed out the screw development and the improvement to provide the oil .

介绍了螺旋榨油机榨螺表面抗磨工艺的研究现状，分析了各种工艺的优缺点及研究进展情况；同时介绍了外形结构、工作状况与榨螺相似的塑料挤出机螺杆表面抗磨工艺的研究动向及进展情况，以期为我国螺旋榨油机榨螺表面抗磨工艺的改进提供借鉴。

In this paper the semiconductor light emitting diode, including its development, the interior structure and the work principle was introducesd. Meanwhile, also on the development of solar , and its components of the structure, working principle done a detailed introduction .

本文介绍了半导体发光二极管LED的发展情况、内部结构、工作原理，同时还对太阳能的发展情况、及其组件的结构、工作原理做了详细的介绍。

At first part of this paper author introduces the development of grid and Globus Project. The development and architecture about CDG are introduced at the second part. At the third part, LDAP and MDS-2 of Globus Toolkit2.4 are introduced in detail. How CDG information service and scheduler are implemented is explained at the fourth part of this paper. At fifth part, some testing data chart and viewdata graphics are showed with some conclusion. The sixth part, the last part of the paper, is the review of authors work and the prospect of future work.

本文第一部分介绍了网格的发展概况以及 Globus 项目，第二部分介绍了校园数据网格的一些基本情况以及整体设计，第三部分详细介绍了 LDAP 技术、Globus Toolkit 2.4 中的 MDS-2，第四部分详细介绍了 CDG 信息服务模块与任务调度模块的设计与实现，其中包含一个适用于 CDG 的任务调度算法的设计与证明，第五部分介绍了试验环境与模块测试，包括一些测试数据与结论，第六部分是工作总结以及对今后研究的展望。

Thiscontributes greatly to t he uncertainty of the research result, and limits the use of cosmogenic nuclides in theresearch on soil and weathering profile.

简要介绍了土壤和风化壳剖面中宇成核素的收支情况和累积，并通过几个实例介绍了国外和境外一些土壤和风化壳的宇成核素研究情况：土壤和风化壳的年龄和表面侵蚀速率，坡地土壤的生成速率和蠕滑速率，土壤面的地貌演化过程，以及一些土壤侵蚀事件研究。

At the beginning of the paper, a literature review on the domestic and abroad researches of Container Terminal logistics system is provided introducing some computer simulating model technology apply case on Container Terminal logistics system on the domestic and abroad; secondly this article introduce the element and characteristics of Container Terminal operation system ,specially operation flow , controlling principle (including gate testing principle, ship controlling principle , quay operating principle , yard I/O operating principle , yard running system),followed by quality evaluating index and empiristic formulas of Container Terminal .

本文首先回顾了国内外集装箱码头物流系统的研究动态，介绍了国内外计算机仿真技术在集装箱码头物流系统仿真中的应用情况，然后介绍了集装箱码头作业系统的组成和特点，以及其装卸工艺、作业流程、操作原则(包括大门检查箱作业原则、船舶调度管理原则、码头前沿操作原则、堆场存取箱作业管理原则、堆场管理系统)，接着介绍集装箱码头系统的性能评价指标和码头通过能力经验公式及出入口车道数计算，并结合天津港集装箱码头物流系统的特点，系统地介绍了天津港集装箱码头的基本组成、布局、装卸工艺、作业流程后，评估了集装箱码头物流系统的相关性能指标，并结合实际码头的历史数据，介绍一些相关的经验公式。

He describes meeting and companies of the basics, published a fiery speech, to our recruitment representatives describes my art and the school of design, packaging engineering profession and so the basic information, visit have expressed on behalf of the company gratulated and xijng talents'cultivation pride!

他首先介绍了见面会和参会企业的基本情况，蒋院长发表了热情洋溢的讲话，为远道而来的企业招聘代表们介绍了我艺术与设计学院、包装工程专业等的基本情况，表达了对来访招聘企业代表的热烈欢迎和对我院人才培养的高度自信！

With annual sales volume exceeding US$100 million, Wittiest Friend supplied products have been sold all over the world, to more than 20 countries and regions, our major markets include North and South America, Europe, Australia and Japan

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Firstly, Mark Twains life and literary career are summarized; secondly, a brief survey of the book and its translation history in China are generally stated; at last, the three Chinese versions are introduced with their translators, and the reasons why these versions should be chosen to study out of dozens of translations.

首先，原文作者马克·吐温的生平和文学生涯在本章中得到概述；其次，本章介绍了《哈克贝里·芬历险记》的相关情况及其在中国的翻译情况；最后，本章对这三种译本及其作者进行了介绍，并且论述了本文从众多译本中选择这三种译本进行比较的缘由。

The big eared hedgehog, the little owl, the sand gecko, the three-toed jerboa, and every show needs a villain - saw-scale - the viper!

大耳刺猬，小猫头鹰，沙壁虎，三趾跳鼠，每场戏都需要反派角色：蝰蛇。

Plasmodiophora brassicae ; resting spores ; density gradient centrifugation of sucrose ; ultrasonic disruption

根肿；休眠孢子；蔗糖密度梯度离心；超声波破碎