道

The other causes included stenosis of the sphincter of Oddi, focalized pancreatitis of the head of pancreas, traumatic stricture of bile duct and stricture of bilioenteric anastomosis (25％), and bile duct obstruction due to tumor (5％).

分析1996—2006年收治的100例多次胆道手术病人的临床资料，对其原因进行分析。结果 65％的胆道再手术原因是结石复发或残留，括约肌狭窄、胰头部肿块型胰腺炎、胆道损伤后狭窄和胆肠吻合口狭窄占26％，胆道系统肿瘤占5％。

Based on above-mentioned 3-D mathematical model, a comparison study of PEMFC with conventional and interdigitated flow fields has been conducted at last.

详细分析和比较了两种流道设计的流动和传质特性，结果发现，与传统流道的燃料电池相比，交叉梳状流道设计的电池由于流道的一端被封死迫使流体通过电极而产生强烈的强制对流。

Four peripheries of aesthetics of music are as follows:(1) the cultural background of the time under which musical beauty exists;(2) the traditions about aesthetics of music, namely diachronic experiences in clinique of music;(3) aesthetic experiences jointly owned or shared by human beings; and (4) the effective association of aesthetics of music with the value system of the society as a whole.

内容提要：音乐美学研究的中心是对现代音乐美存在与之所以存在的积极接受，它的第一道边界是音乐美存在的当下文化背景，第二道边界是音乐美学传统即历时的临响经验，第三道边界是人类共同的审美经验，第四道边界是音乐美学与整个社会价值系统的有效关联。

Four peripheries of aesthetics of music are as follows:(1) the cultural background of the time under which musical beauty exists;(2) the traditions about aesthetics of music, namely diachronic experiences in clinique of music;(3) aesthetic experiences jointly owned or shared by human beings; and (4) the effective association of aesthetics of music with the value system of the society as a whole.

杨赛内容提要：音乐美学研究的中心是对现代音乐美存在与之所以存在的积极接受，它的第一道边界是音乐美存在的当下文化背景，第二道边界是音乐美学传统即历时的临响经验，第三道边界是人类共同的审美经验，第四道边界是音乐美学与整个社会价值系统的有效关联。

The flow characteristics in the flow path of emitters must be understudied roundly in order to design an emitter with high performances.But the labyrinth path was very narrow and complex,and the archetype experiment of the emitters was unreasonable both in the technology and...

通过对迷宫式流道内部流体流动特性的分析，构建了表征迷宫式流道内部流动的数学物理模型；对所选取的目前中国农业灌溉领域最为典型的三种圆柱型灌水器，借助FLUENT6.1 CFD流场软件分析平台实现了流道内部流速分布、涡量分布、紊流强度分布等流动特性的可视化，为新型灌水器流道研制提供一定理论基础。

The objectives of this paper were to investigate the simulation and design of continuous multiple-station rolling forming process for a U-Section Steel Bar by CAE software-DEFORMTM Due to the limitation of elements number using a short strip 120mm went through all the stations to simulate the real continuous rolling forming on factory The roller gap was fixed as 0 30mm roll speed was 20 rad/sec and progressive angles were all equal for each rolling process which were the formed angle divided by by the number of station Three rolling processes were selected with 6 9 and 12 stations respectively During simulation processes two cases occurred Case A the strip was through a single station Case B the strip across two stations Because the strip laterals side was stretched and twisted during the process The model of case B closer to the practical process than case A and the calculated stress and strain on the tip of U section for case A were lower than these for case B by up to 15% From the result of case B for each process the stress for 12-station process was smallest 9-station process second and 6-station process next Because less-station can save larger cost and forming time but the bigger stress and strain for 6-station caused wrinkles on lateral sides not found on 9-station and 12-station Therefore 9-station process was a more suitable design than 12-station process smaller stretched and twisted and stress The progressive angles for 12-station was 7 5?

本文主要是以DEFORMTM有限元素软体模拟U型钢片连续道次成型与单一道次成型以确认单一道次模拟的是否可取代连续道次模拟之研究。因DEFORMTM 软体对於网格元素上的限制故使用较短素材120mm通过所有的成型站以模拟工厂实际连续成形方法。辊轮间隙固定为0 3mm；辊轮转速为20 rad/sec；弯曲角度的方法为将成型角度平均除以成型站数。有三种辊轮成型方式被选择分别为6站，9站，与12站。在模拟的过程中有两种现象会产生 Case A，素材通过单一成型站。Case B，素材会通过两个成型站。因为在模拟过程中素材的两端会有拉应力与扭力。Case B的模拟比Case A像实际的制程，并计算应力与应变在U型断面的Tip部中可发现Case A比Case B低约15%。从Case B的每站的结果可以得知，12站的成型应力最小，9站次之，6站最后。

Company now occupies an area of 60,000 O, it has an annual output of 6000 tons of production capacity Brass Road, Products, Products are widely used in building, machinery, shipbuilding, environmental protection and other sectors of water supply and drainage, air conditioning, oil, gas pipeline system and, through the ISO9001 quality assurance system and the Hong Kong international certification authorities, etc. Water Detected qualified, is the first authentication Road cover a full range of brass products, but also the only domestic production brass, brass parts, copper valve in one production enterprises. Ningbo City in 2001 was awarded the title of famous brand products. They will enjoy a lasting brass in 2002, Ningbo Road Limited and Crane Valve Group USA formed a joint venture Crane They will enjoy a lasting Valve Co., Ltd., specializing in the production of bronze valves and all exports of Britain and the United States and other countries, marking the Ningbo They will enjoy a lasting brass Road Limited has big step to enter the international market competition.

公司现占地60000㎡，已具备年产6000吨铜管道产品的生产能力，产品广泛应用于建筑、机械、船舶、环保等行业的给排水、空调、油、汽管道系统中，并通过ISO9001质量保证体系国际认证和香港水务局等国内外权威机构检测合格，是国内第一家认证范围覆盖铜管道全系列产品的公司，也是国内唯一集生产铜管、铜管件、铜阀门于一体的生产企业。2001年荣获宁波市名牌产品称号。2002年宁波永享铜管道有限公司与美国克瑞阀门集团合资组建了克瑞永享阀门有限公司，专业生产青铜阀门并全部出口英美等国，标志着宁波永享铜管道有限公司已大步进入国际市场的竞争行列。

This paper using the FEM software Marc, for the 50 and 60 degree V groove of flat plate butt joint simulate the one-layer and three layers welding, finish each welding and cooling it down to room-temperature then start the next welding true represent process and get the temperature field, residual deformation and welding residual stress, according to the theory analysis and empirical equation verified the temperature field and residual deformation all correct, comparison with experiment verified the welding residual stress regularity and correctly.

本文利用有限元软件Marc，对开60°和50°V型坡口的平板对接接头，动态的模拟了单层单道打底焊，焊完一道后让试件冷却到室温以及单层单道满焊，每焊完一道后让试件冷却，然后再焊下一焊道，道间温度≤200℃，在以此为初始边界条件下开始下一道的焊接，真实的再现了焊接过程，得出了温度场，残余变形和残余应力场的分布规律，根据理论分析及经验公式验证了温度场以及残余变形的正确性，角变形的大小，这些结果与数值计算相吻合。通过与实验测得的残余应力进行比较，验证了焊接残余应力的分布规律及模拟的正确性。

The results show that the performances of the passages vary with diaphragm depth, channel width and board spacing.

从流道中间隔板深度、流道宽度及流道板间距3方面研究了U形流道几何结构尺寸对性能的影响。

The best combination of anode and cathode flow channel flow was anode flow channel cross-finger, the flow field composed of the cathode flow channel cross-refers was the best combination of flow field.

阳极流道与阴极流道的最佳组合为阳极交指流道、阴极交指流道组成的流场为最佳组合流场。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。