弯头

That method has break through traditional lofting model.

该方法突破了传统的放样模式，步骤简单、快捷，数据准确、可靠，大大优于传统的"作图法"、"计算法"，是对传统放样模式的技术提升，是牛角弯头展开放样准确、简单化的有效途径。

He has good skills in bowing the tubes into any angle with a big pinchers, while nobody except him masters this technique,which has to be used in producing machine for getting rid of snow for a Japanese company.

老爸的"窍门"竟在于有技术而不外传！他的公司长年为日本北海道一个公司加工除雪机，而其中的部件——一种管子，需要技术工人将其用弯头，调整成规定的角度，如90度、93度、95度等等。

Production and operation of spiral steel pipe (spiral welded steel pipes, spiral welded pipe, Cangzhou spiral pipe, spiral pipe, spiral wound steel tube), seamless steel pipe, straight seam steel pipes, hot-rolled steel pipes, hot expanded steel pipe, welded steel pipe, galvanized steel pipe, galvanized pipe, pipe stress, anti-corrosion steel pipe, pipe insulation oil and gas 2PE/3PE polyethylene coating, FBE pipe anti-corrosion epoxy powder dissolved, epoxy coal tar pitch as if paint, pipe cement mortar lining anti-corrosion, black yellow jacket pipe insulation, flanges, elbows, big bend, three links, the size of a top tube.

生产经营螺旋钢管（螺旋缝焊接钢管、螺旋焊管、沧州螺旋钢管、螺旋管、螺旋缠绕钢管）、无缝钢管、直缝钢管、热轧钢管、热扩钢管、焊接钢管、镀锌钢管、镀锌管、压力钢管、防腐钢管、保温钢管（石油天然气2PE/3PE聚乙烯防腐层、FBE溶解环氧粉末钢管防腐、环氧煤沥青仿佛涂料、钢管水泥沙浆衬里防腐、黑黄夹克保温钢管、法兰、弯头、大弯、三通、大小头等管件。

That means use of three-dimensional CAD Software quickly genera reverse to arrangement stereo line graph of the elbow, then the computer quickly measure out each bus real long, then the method of drawing plane development graph.

该方法主要利用三维CAD软件1：1快速生成弯头的反向排列立体线架图，然后由计算机快速测量出各节的母线实长，进而进行平面展开图绘制。

According to the theoretical results, the sizes of groove and the curvature radius of bend can be reasonably chosen in design.

首先，本文在第二章采用耦合模理论分析了GNRD波导E面弯头的传输特性。

Reattach the relief valve hose to the elbow in the bottom flange cover.

重新将安全阀软管接到底部法兰盖内的弯头上。

A large proportion of tube bursting is caused by flow rate deviation induced by incorrect configuration of superheater and reheater system.

其中过热器、再热器采用的不合理结构，如弯头、三通等引起的并联管组上的流量偏差导致爆管占了较大比重。

The reason of cracking in elbow of the hot hi-pressure segregator oil P3327 pipeline in the hydrocracking unit was analyzed and a method to prevent from polythionic acid corrosion was provided.

对国产加氢裂化热高分油管线的弯头开裂原因进行了分析，并对预防连多硫酸腐蚀提出了相应的防范措

In this thesis, I summarize the theoretical calculation method, applied scope and notice of siphonic drainage system, and point out the advantage of siphonic drainage system compared with gravitation drainage system. In the archetype experiment study of siphonic drainage tube, I adopt different tube diameter and different structural height to survey the drainage volume and press in different place. I observe various kinds of flow state, and get chief factors which influence hydraulic peculiarity of system as the tube diameter or structural height, and find out the relevance of factor to flux. I apply CFD Fluent software and adopt standard k-ε model and RNG k-ε model, then use finite volume method and second-order upwind scheme to discrete numerical model, while coupling numeration of velocity field and press is based on SIMPLE. In the numerical simulation of curved part of tube, siphonic drainage tube experiment system and multi-outlet siphonic drainage system, I make research on internal velocity and press of system in different project condition by changing the tube diameter of curved part, negative press value in tube export and improving the quantity of water gutter. This thesis first adopts a method of combining archetype experiment and numerical simulation to study the siphonic drainage system, test and verify the validity of experiment and numerical simulation, and makefurther study on system, it solves the problems of limited testing conditions, and has a logical results, it can provide a valid method for optimizing and designing the drainage tube-net system. The conclusion have referring value for study and design of siphonic drainage system.

本文首先对虹吸式排水系统理论计算方法、适用范围以及注意事项做出总结，并分析了虹吸式排水系统的优势；再对虹吸式排水管道进行原型试验研究，采用不同管径不同立管高度，对系统流量、管道压强进行量测，观察了各种工况下的流态，对其水力特性进行研究分析，找出影响水力特性的落差、管径主要因素以及与排水量的关系；进一步应用计算流体力学Fluent软件，采用标准κ-ε模型与RNGκ-ε模型，计算过程应用有限体积法和二阶迎风格式对数值模型进行离散，速度和压力的耦合采用SIMPLE算法，分别对系统弯管段、虹吸排水管道试验系统、多斗虹吸式排水系统进行数值模拟分析，通过改变管段弯头处半径、管段出口负压值、增加雨水斗数对不同工况下系统内部的速度和压力进行研究；本文首次采用结合原型试验与数值模拟相结合的方法，对虹吸式屋面雨水排水系统进行研究，试验与模拟相互验证，并进行拓展，很好地解决了虹吸式屋面雨水排水系统由于试验条件限制问题，结果正确合理，为排水管网系统设计和优化研究提供了有效的方法，对工程设计有较好的参考价值。

But if you look at the full force elbows coming from Ortiz, I personally don't think the stoppage was early at all.

但是，如果你看看的全部力量弯头来自奥尔蒂斯，我个人不认为暂停是早期在所有。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。