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This paper based on the low gas permeability coal seam 416 stope working face of Tongchuan mineral bureau,we analyzed the mechanism of the hydraulic cutting seam to improve the gas permeability coal seam,by this study,it shows the hydraulic cutting seam technology is effectual measure and it is provided with nicer practically and capacious foreground.

文章以铜川矿务局陈家山煤矿低透气性416综放工作面为研究背景，深入研究了水力割缝增强煤层透气性的作用机理，试验表明了水力割缝的确是一种提高低透气性煤层瓦斯抽放的有效措施，并具有良好的实用性和广阔的推广前景。

In the market that increases quickly in this, tripartite pays a manufacturer the competition between, and pay an electron to change the competition between and collaboration with the bank, also intense undertake, in the process that cleans out sand in this sea, pay industry foreground what course to follow?

在这个快速增长的市场中，第三方支付厂商之间的竞争，以及与银行支付电子化之间的竞争与合作，也正激烈进行，在这个大浪淘沙的过程中，支付行业前景何去何从？

At the same time, the PFI2004 puts forward the investment that establish the exhibition meeting cooperation item guidebook for the very first time, and 《PFI2004 investment cooperation the item gathers》, that that volume register the point to investment to join the exhibition the business enterprise to cooperate item and technologies creative item, market development foreground good, the technology contains the high item in deal, also will include to usher in the intelligence item.

同时，PFI2004首次提出创办展会的投资合作项目指南，及《PFI2004投资合作项目汇总》，该册将重点收录参展企业的投资合作项目及科技创新项目，市场发展前景好、科技含量高的项目，同时也将包括引智项目。

In the process of building and using the mass concrete structures, because of the effect of out-side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance Using nondestructive testing method to test the concrete"s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseasesThis dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic FEM to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, Researched the principles of the first-arriving waves" phase when the cracks" depths are not same, obtained the relation between the inversion point and the cracks" depth, which has the direction sense in the application of projects,The second part of this dissertation is CT , which used the ultrasonic wave running through the tested-substance to get arriving-time of the ultrasonic wave, then inverse the image This dissertation drawed one CT program which can well present the different little cells ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested-substance, CT has the better using foreground..

在混凝土结构的施工及使用过程中，由于受其自身及外界各种因素的影响，常常会产生一些缺陷，对结构物的承载能力和耐久性造成严重影响，采用无损检测技术进行质量检测和健康诊断，这对混凝土结构开展安全、稳定性评估以及病害隐患治理研究具有重要意义。本论文主要针对大体积混凝土结构缺陷的检测方法展开研究工作，重点讨论了超声波法检测混凝土结构裂缝的基本原理和方法及其特点、适用范围，运用动力有限元数值模拟其检测过程，探讨了有裂缝缺陷的混凝土结构在脉冲荷载作用下弹性波的传播及其变化特征，研究了不同裂缝深度下首波相位变化规律，得出了反转临界点与裂缝深度之间的关系，这对实际工程应用具有指导意义。声波CT是一种新的无损检测技术，它是利用声波穿透被检测体获取声波接收时间，来进行计算机反演成像的技术。本文利用直射线法编制了层析成像程序，能较好地呈现被检测物体各微小单元的声波速度分布图像，从而对检测体的质量状况作出诊断评估，具有较好的应用发展前景。

Set your foreground color to light gray and background to white.

设置前景色为浅灰色，背景为白色。

Nice view of the train with the Corn Maze in the foreground.

从玉米迷宫前面看蒸汽火车穿过，景色很美。

The knight errant miniature novel is a kind of on the up literary style, is a knight errant culture in the lately period Cultural linguistic environment, carry on with own a strong development the miniature novel of the foreground a text originally organic combine of outcome.

武侠微型小说作为一种方兴未艾的文体，是武侠文化在新时期文化语境中，与拥有强大发展前景的微型小说文本进行有机结合的产物。

The knight errant miniature novel is a kind of on the up literary style, is a knight errant culture in the lately period Cultural linguistic environment, carry on with own a strong development the miniature novel of the foreground a text originally organic combine of outcome.

作者：第6号床出自：今夜，梦醒，惊觉，满怀的梦想在一路风尘一。。。浏览/评论：377/0 日期：2006年6月13日 15：13摘要：武侠微型小说作为一种方兴未艾的文体，是武侠文化在新时期文化语境中，与拥有强大发展前景的微型小说文本进行有机结合的产物。

A portion of the set used in Steven Spielberg's film "War of the Worlds" including a jet airplane is shown foreground.

的一部分用于建立史蒂芬斯皮尔伯格的影片&世界大战&，其中包括喷气飞机是表明前景。

Picture shows a Moai in the foreground with several others over a platform on the Easter Island.

照片前景为一尊摩艾石像，它和其他数尊石像散布复活节岛一个平台上。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。