管

Thirty-five patients with carcinoma of the lower rectum were completed the cutting operation passing the belly in Dixon operation, clamping the sigmoid at the 5 cm of location for anastomosis passing anus to insert one piece of 22# foley urea pipe, using 15-20 mL of water filling into urea pipe ball bag, then pulling urea pipe to stop with clear blockage, and passing urea pope forward recta cavity to fill 100-150 mL of methylene blue dilution to observe the opening of anastomosis.

探讨直肠癌行低位Dixon手术，术中采用肠腔封闭式加压灌注检测及术后放置支架管引流对吻合口瘘的预防作用。1本组低位直肠癌患者经腹腔完成直肠癌直肠前切除吻合后，用肠钳在吻合口上端5cm处钳夹肠管，再经肛门插入1条22#Foley尿管，尿管球囊注入15~20mL水后向外拖动尿管至有明显阻力时停止。

Steel billets are adopted edition of tran scription or strip steel, steel because of its riveting process does not fall into the stove with the pipe, electric arc welding arc-welded pipe and take the initiative; pipe material and its usefulness is not the same but is divided into: galvanized steel riveting , there is no rust steel riveted steel pipe.

钢管采纳的坯料是誊写钢版或者带钢，钢管因其铆接工艺没有同而分成炉焊管，电弧焊接管和主动电弧焊管；焊管因其材料和用处没有同而分成：镀锌铆接钢管，没有锈钢铆接钢管。

At first, the method used the finite element method to design the combination plan of submains and hollow forgings capable of meeting with the requirement of the douches in a micro-irrigation system that the water flux and water-discharging uniformity of the douches be equilibrated, and the pressure heads of the correspondent submain units; next, the parameters of the design and the pressure heads were input into the dynamic programming model and then the optimal combination design of the diameters of various orders of micro-irrigation pipes in the system as well as the pressure heads necessary to operate the system was obtained.

提出了一种基于有限元法和动态规划法的微灌系统管网优化设计方法，该方法先利用有限元法，设计出符合灌水器平均流量和灌水均匀度要求的支管与毛管参数组合方案，及相应的支管单元操作压力水头，然后将这些参数组合与支管单元操作压力水头代入动态规划模型，即可设计出微灌系统各级管道管径的最优组合方案，并确定微灌系统所需的操作压力水头。

Company provides aluminum materials special for Woodworking machinery,Underground and Train,Container,Textile machinery,Industrial frame line,Pump,Cylinder,Motor casing,Electronic radiator,Electronic communications.Illumination device,Lifter,Sulphation machine, Petrochemicals,Printing and packing equipments and other industries,we focus on developing pure aluminum,hard aluminum alloy,super-hard aluminum alloy,rust-resistance aluminum,bar-tube plate and seamless aluminum round/square pipes and delivers finely processed aluminum products to broad customers.

一林铝业有限公司面向市场提供木工机械铝材、地铁、火车体铝材，集装箱体铝材，纺织机械铝材，工业框架生产流水线铝材，泵体、缸体、电机壳体铝材，电子散热器铝材，电力通讯铝材，灯具铝材，升降机、硫化机铝材，石油化工铝材，印刷包装设备铝材等各行业的专用工业铝材；着重研发纯铝、硬铝、超硬铝、防锈铝、管棒铝材及各种无缝管圆管方管，并面向广大用户提供各种深加工后的铝制品。

It is an ideal operation for applying ilium autografting with vertebral canal posterior wall plastic operation combining pedicle screw fixation to treat burst fracture of thoracolumbar vertebra with spinal stenosis, it is a simple and safe operative technique to entirely decompress in duramater and nerve roots and enlarge bore of vertebral canal therefore eliminating secondary spinal stenosis, the reconstructing of posterior column including spinous process and supraspinal ligament also increasing spinal stability.

自体髂骨移植椎管成形加椎弓根螺钉内固定，对严重胸腰椎爆裂性骨折伴椎管狭窄是一种较理想的手术方法。此方法操作简单、安全，解除神经及硬膜囊压迫的同时扩大了椎管，杜绝了继发性椎管狭窄，重建了后柱结构包括棘突及脊上韧带，增加了脊柱稳定性，值得推广。

Based on the structural model of tracheid from Bolton and Petty,the flow-resistor of tracheidis assumed to consist of four components in series.

设若一个管胞的流阻为Rg，管胞腔的流阻为RL，纹孔系统3部分的流阻分别为RPA、RBT和RMo；又，在某一个纹理方向上管胞纹孔的数目是N，纹孔膜的微孔数目是NM，则管胞在该纹理方向上流阻的数学表达式为

"Typer" or "torpedo" nozzle tubes have no threaded portion at the nozzle area and require to be pierced with a pin before the product can be squeezed out.

4&锥型&(Typer怀疑是taper锥形管口，typer是打字机的意思，实在想不出应该怎么译)和&破坏式&(torpedo是鱼雷，攻击，破坏的意思，鱼雷式管口或是破坏式管口你自己再看看有没有更专业的译法吧)管口的软管没有螺纹部分，需要用大头针将其刺破，产品才能挤出来。

All specimens are of small size, mostly less than 150 μm in diameter. In gross morphology, those problematical microfossils consist of stout tubes with closed base, tiny internal mold of elongated tube, parallel clustered unbranching tubes, spicule-like structure with expanded circular base, and branching tubes of various bifurcating styles.

作者在处理陕南末元古纪的化石过程中，发现了大量不同形态的微体管状化石(直径大多小于150μm)，包括末端封闭的粗短管体，不分枝管体，末端扩展的骨针状构造及具多种分叉样式的分枝管体。

Methods Ninety elective patients undergoing general anesthesia for hysterectomy were randomly assigned to two equal groups. GroupⅡreceived endotracheal intubation protected by sterilized transparent sleeve while groupⅠcorrespondingly adopted unprotective classical endotracheal intubation. Endotracheal swab sampling and bacterial counting were performed on the principle of aseptic processing before endotracheal intubation and extubation, respectively.

90例在全身麻醉下行择期全子宫切除术的患者随机分为两组，每组45例，Ⅰ组采用传统的气管插管操作方法，Ⅱ组采用无菌透明隔离套保护的气管插管操作方法，在气管插管前和拔管前分别按照无菌操作原则实施气管内试子取样，进行菌落计数。

Especially, the difference of the nearest-neighbor hopping integral is due to the effect of the curvature of the carbon nanotubes. So, in fact there is a very narrow energy gap near the Fermi energy of unsquashed metallic zigzag carbon nanotubes, and, a slighter deformation is required to open a considerable energy gap in metallic zigzag carbon nanotubes than that in armchair nanotubes.

特别是，最近邻格点之间的跃迁积分的变化与碳纳米管的曲率紧密相关，因此实际上，理想金属型 zigzag 碳纳米管本身具有微小能隙，而施加比 armchair 碳纳米管小的多的压缩量，就可以使金属型 zigzag 碳纳米管在费米能处打开相当的能隙。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。