特大的

Based on analysis of the current state of the flow pattern modeling abroad and at home, explains the meaning of the mathematical simulation of the flows in the valve.(2) Comparing flow simulation data of jet pump with its experimental one, the feasibility and reliability of FLUENT used for flow simulation are proved.(3) Based on the characteristic of valves, the fluid field analysis of specific ring-spray type flow-adjustable is finished. The valve structure is optimized to meet the need, which makes it have such advantages:(1)smaller vortex area and faintish vortex intensity, so the vibration of vortex is controlled effectively;(2)the pressure is distributed more equality, the transition area is larger.

论文的主要内容包括：(1)简述了阀门研究的现状与发展，在分析与总结国内外流体流动模拟研究的基础上，探讨开展阀门内水流运动数值模拟的意义；(2)对特定型号的射流泵进行了内部流场的数值模拟研究，并与实验数据相比较，验证了应用Fluent进行数值模拟的可行性和可靠性；(3)针对调流阀的特点，对特大口径环喷式流量调节阀进行流场计算，其设计指导思想如下： 1、控制旋涡，减小旋涡区，减小涡的强度； 2、控制压力分布，使阀体受力更均匀，改善局部应力状态，提高阀门使用的安全性； 3、最小绝对压力高于水的汽化压力，不产生汽蚀。

There remained the generic conditions imposed by natural, as distinct from human law, as integral parts of the human whole: the necessity of destruction to procure alimentary sustenance: the painful character of the ultimate functions of separate existence, the agonies of birth and death: the monotonous menstruation of simian and human females extending from the age of puberty to the menopause: inevitable accidents at sea, in mines and factories: certain very painful maladies and their resultant surgical operations, innate lunacy and congenital criminality, decimating epidemics: catastrophic cataclysms which make terror the basis of human mentality: seismic upheavals the epicentres of which are located in densely populated regions: the fact of vital growth, through convulsions of metamorphosis, from infancy through maturity to decay.

324截然不同于人为的法则，这里依然存在着按照自然的法则作为对维持整个人类的生存不可分割的部分加诸于人的生物学之基本条件。为了获得有营养的食品，就不得不进行破坏性的杀戮。孤立的个人生存中终极机能那充满了苦恼的性质。生与死的痛苦。类人猿和人类女性那单调的月经，自初潮期一直延续到闭经期。海洋上、矿山和工厂里那些不可避免的事故；某些非常痛苦的疾病以及伴随而来的外科手术；生来的疯颠，先天性犯罪癖；导致人口大批死亡的传染病；在人类心灵深处种下恐怖种子的灾难性特大洪水；震中位于人口密集地区的大地震；历经剧烈变形，自幼年经过成熟期进入衰退期的生命成长的事实。

Moreover, second-winding current waveform of a current transformer is calculated under the transient current of the typical short-circuit fault by numerical method. The analysis shows that the relevant protection equipment may refuse to trip when the fault current is extra high. It will result in the maloperation of protective relays for loss of their selectivity, and cause other protective relays to operate beyond range, and extend the scope of shutdown of power supply.

在这些回路出口处发生相间直接短路等严重故障时，流过相应TA一次侧的故障电流可能达到TA额定工作电流的100倍以上，大大超过了保护用TA的10%误差容许倍数，将使TA严重饱和，从而影响相关的保护设备的动作性能，因此有必要对在这种特大电流作用下的TA的传变特性做一些探讨，以分析其对继电保护装置动作特性的影响及应采取的措施。

Factor, decide at the pack head to go to Xian to build 1 lately sets up a railroad, this engineering is a pair of track circuit with total goods, design soon the 250 Kms/h , in set up of yellow river especially big bridge being located on this circuit, cross over yellow river length to reach to a 3912.89 ms, in especially the construction of the big bridge, measure the work show of is importance, relate to whole bridgeses of run-through, measure in use the whole station instrument and intelligence calculator, carry on a precision to measure to establish to the point, come to a to show Zhao in actually the work of effect, and speed construction progress, economized cost to create a performance.

为了适应经济的发展，进一步的开发大西北，也为了缓解内蒙古包头及东胜地区煤炭资源外运的运力紧张问题，结合当地的经济技术地质等因素，决定在包头至西安修建一条新建铁路，本工程为双线客货共轨线路，设计时速250Km/h，在建的黄河特大桥位于本线路上，跨越黄河长度达3912.89m，在特大桥的建设中，测量工作显的尤为重要，关系到全桥的贯通，测量中使用全站仪及智能计算器，对点位进行精确测设，在实际工作中达到了显著的效果，而且加快了施工进度，节约了成本创造了效益。

Josie指着这几张钱背面解释说:on the back side of 5 pound note depicts elizabeth fry'sface,she was a philanthropist in 19th century britain,the left side picture showing a scene with her reading in a charity campaign;the 10 pound note depicts mr.charles darwin who was an aturalist in 19 th century britain;the 50 pound note depicts sir.john houblon who was the first governor of the bank of england;the back side of his face is his house;as for the back side of 20 pounds,it depicting sir.edward elgar's face with aview of worcester cathedral,elgar was a famous composer in the world.

5镑背面描绘的是英国19世纪慈善家伊丽莎白弗雷的肖像，左侧是她参加慈善活动的图案；10镑钱描绘的是英国19世纪博物学家查尔斯达尔文；50镑钱描绘的是英格兰银行第一任董事约翰霍布伦，他肖像的后面是他的家；至于20镑钱，描绘的是爱德华埃尔加的脸和伍斯特大教堂埃尔加是著名的作曲家）

Galvanized sheeting Base trim Galvanized gable sheeting angle Siphon groove to disperse water Mastic sealant on roof Corrugated ridge cap Self-drilling and self-tapping screws with preassembled neoprene washers with metal caps Oversize fasteners and extra screws Community freight reduces shipping cost Factory trained inventory of parts at jobsite Pre-marked parts for easier erection Anchor bolts plans, erection manual and construction drawings Factory Limited Warranty available upon request Full trim on door openings Eave, gable, and base closures

镀锌了覆盖的基本的修剪被镀锌的山墙覆盖的角度虹吸管凹线对分散剂水乳香树脂密封胶，并且自动攻丝螺杆与被预装配的氯丁胶洗衣机与金属加盖特大紧固件，并且额外螺丝公共货物减少零件运费工厂训练的存货在jobsite 前被标记的零件为更加容易的架设固定螺栓计划、架设指南和结构图工厂有限保证可利用的根据需要充分的修剪在门开头房檐、山墙和基本的关闭

She had on a black bonnet with plumes not unlike the hats of the heralds-at-arms at the coronation of Charles X., an immense tartan shawl over her knitted petticoat, and the man's shoes which her daughter had scorned in the morning.

她头上戴着一顶插满了羽毛的黑帽子，颇象那些参加查理十世祝圣大典的武士们所戴的帽子，在她那条棉线编结的裙子上面扎了一块花花绿绿的方格花纹的特大围巾，脚上穿的是一双男人鞋，也就是这天早上她女儿抱怨过的那双。

Edward Elgar's face with aview of Worcester Cathedral,Elgar was a famous composer in the world.

5镑背面描绘的是英国19世纪慈善家伊丽莎白弗雷的肖像，左侧是她参加慈善活动的图案；10镑钱描绘的是英国19世纪博物学家查尔斯达尔文；50镑钱描绘的是英格兰银行第一任董事约翰霍布伦，他肖像的后面是他的家；至于20镑钱，描绘的是爱德华埃尔加的脸和伍斯特大教堂埃尔加是著名的作曲家）

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。