管束

Methods Technical improvement included cystectomy with direct and antidromic method, frost biopsy of excision part of urter, protection of the neurovascular bundle, extended radical lymphadenectomy, suture and ligation of the dorsal vein complex.

改进根治性膀胱切除术，包括顺逆性结合的膀胱前列腺切除、输尿管远端冰冻活检、缝扎背深静脉、保护神经血管束、广泛盆腔淋巴结清扫等。

One that is ungovernable is not capable of or amenable to being governed or restrained

一个 ungovernable 的人不能被管束或限制，或者不服从管束或限制

The heat release calculation by external condensation of horizontal multitube, vibration check while media transversely flow over tube bundle, ensemble rigidity pipe bundle and connecting technology of tube and tube plate ware presented in this paper.

介绍了大型加热器的水平式多管排管外冷凝放热计算、介质横向流经管束时的振动校核、整体刚性管束以及管子与管板的连接工艺。

A separated model is developed for the recirculating flow and heat transfer in a kettle reboiler tube bundle.

提出了釜式再沸器管束中循环流动换热的分相预报新模型，考虑了管束下部的过冷沸腾及循环液体的侧面引入。

The arrangement and layout make a public impact on the steam resistance extent of condenser, uniform steam distribution in the tube bundle and the occurrence of dead zone full of air, etc.

管束的排列和布置型式对凝汽器的汽阻大小、蒸汽在管束中的分配是否均匀，以及是否会出现空气积聚的死区等都有影响。

It measures the space between tube-sheet of upper and bottom in assembly of tube bundle firstly,then unifying the dimension of tubes,finally proceeding with the welding of tubes,which reduces the difficulty of tube bundle assembly and improves work effic.

在管束组装中采用先测量上、下管板间距，再确定换热管长度，然后穿换热管并组焊的工序，降低了管束组装的难度，提高了工作效率。

In general, the working pressure of steam is not more than 0.8 Mpa and the temperature of air will be below 150℃. The wing radiator consists of three rows of paratactic screw wing pipe mainly. The paratactic screw wing pipe is made through winding 05*10mm of steel belt onto 18mm steel pipe and then zinc hot galvanized. It can also be made with full stainless steel pipe and belt. Model SRL radiator is made of steel pipe and aluminum belt through rolling. Its radiation area in unit length is more than Model SRZ.

翅片式散热器主要由空气流向间的三排并列螺旋翅片管束组成，SRZ型散热翅片管束的加工工艺是反0.5*10毫米的钢带用机械绕片方法，绕在18毫米无缝钢管上，然后进行热镀锌，也可用不锈钢管及不锈钢带制成全不锈钢散热器，SRL型散热器则是用钢管和铝带轧制的翅片散热器，其单位长度的散热面积比SRZ型的更大。

The tube bundle is the main composition of condenser. Its reasonable arrangement and layout can determine the condenser vacuum degree, condensate supercooling and oxygen content.

管束是凝汽器的主要组成部件，管束的排列方式和布置是否合理，对凝汽器的真空度、凝结水的过冷度和含氧量均起着决定性作用。

A surface evaporating air cooler heat exchange tube with membrane plate can improve the water membrane area and improve the evaporation heat transmission, without significant wind resistance.

带有增膜板的表面蒸发空冷器换热管束，属于表面蒸发式空冷器的组成部件，特别涉及表面蒸发空冷器换热管束，以有效扩大水膜面积，强化蒸发传热，且不明显增加风阻。

In this paper, a twodimensional and a quasi-three-dimensional procedure are developed and used to analyze the steam flow field and heat transfer behavior. The basic principles for the rational arrangement of tube bundle are drawn on the basis of a large amount of calculations and analysis. Some proposals for the modification of typical condensers are presented.

本文发展了汽相流动与传热特性的二维与准三维数值计算方法和程序，并用来分析凝汽器汽相流动与传热的基本特点和规律，在大量计算与分析的基础上，总结出管束合理布置的基本准则，并对典型的管束模块提出了改进建议。

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。。。。