上管

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。

They exhibit bending deformation following the direction of the nanotube curvature. At room temperature, a nanoparticle smaller than Au 70 often escapes from the carbon nanotube surface and can be captured again by the nanotube or coalesces with other nanoparticles to form a larger nanoparticle.

纳米颗粒在碳纳米管上形成以后，小于Au 70的纳米颗粒有可能脱离碳纳米管运动，它们在脱离后可能再度被碳纳米管俘获或者跟其他纳米颗粒结合并被重新吸附到碳纳米管上来。

On the basis of research of Bend Pipe machine's principle and Numericl Control system, by a...

通过对弯管工艺的分析，本文在研究弯管机工作原理和控制系统的基础上，以面向对象编程技术为手段，设计和开发出了基于工业PC和WINDOWS 98的双模数控弯管机数控系统，通过调试已成功应用于STAR-03W数控弯管机上：同时，也对在WINDOWS 98平台下开发数控系统所存在的实时性问题提出了解决方法。

Cold-drawn tube production lines still in production, but prices have been as cold-drawing tube of hot-rolled tube and a corresponding rise in prices, the market cold-drawing tube Liaocheng basically the price of real estate in 4400 yuan / ton.

冷拔管生产线仍在生产，但是冷拔管出厂价格已经随着热轧管坯的价格上涨而水涨船高，目前市场上冷拔管聊城本地产基本上售价是在4400元/吨。

Companies in our 10 years of production of holiday lights, LED Lighting Products, based on volume production and is now gradually improve the following LED products; full-color digital rainbow pipe, guardrail lamp profile, full-color digital tube smart screen ads, T5 tubes, vibrant wall color, pixel display, high power lighting, LED lamp, high power cast light, point light source series, wash the wall lamp, crystal lamp lens contours, LED pixel light epoxy, the ceilings and wall lights, Cup lamp, bulbs, Crystal cellular foam, crystal lamp string series, underwater lights, buried lights, brick lights, LED advertising signs module, Rainbow Designs tube lamp series, star lights, net lights, curtain lights and Christmas light string; also Exposure has LED lights, strobe light bulb series, fuse lamp belt; the company also produces full-color LED display control system, LED solar lawn lamp, LED series lighting and accessories, as well as fiber-optic light source generator series.

公司在秉承10多年的生产节日装饰灯、LED灯饰产品的基础上，目前正量产及逐步完善以下LED系列产品；全彩数码彩虹管、护栏轮廓灯管、全彩智能数码管广告屏、T5管、动感彩屏墙、像素显示屏、大功率射灯、LED台灯、大功率投光灯、点光源系列、洗墙灯系列、水晶透镜轮廓灯、LED环氧像素灯条、天花幕墙灯、灯杯、灯泡、水晶蜂窝泡、水晶灯串系列、水底灯、埋地灯、地砖灯、广告标志发光模块、彩虹管图案造型灯系列、星星灯、网灯、窗帘灯及圣诞灯串；还有LED曝光灯、频闪灯泡系列，保险丝灯带；公司还生产LED全彩显示屏控制系统、LED太阳能草坪灯、LED系列灯饰配件以及光纤与光源发生器系列。

On the basis of NCIDI-designed fire-tube boilers and their operation,and through analysis and comparison, the paper proposes the suitable type of fire-tube boiler for large-size high-parameter sulfur-based sulfuric acid production,and summarizes key points for structural design of critical components.

由于硫磺制酸的炉气清洁无尘，比较适合采用火管锅炉，再加上火管锅炉结构简单、操作方便、运行可靠、运行费用低，特别是中小型火管锅炉的投资比水管锅炉省等优点，所以最近几年来火管锅炉在硫磺制酸上的应用有了长足的发展。

The thyristor and stator winding have different topology architecture when the inductionmotor is controlled by the thyristor. Based on the fault characteristics of the inductionmotor, the current through the thyristor and the stator winding are studied when theshort-circuit or open-phase fault is occurred. The reasonable protection method based onthe different topology architecture is given in the thesis, and the induction motor and theover-current of the thyristor are reliably protected.

在分析异步电动机一般故障特性的基础上，针对采用晶闸管对异步电动机进行节能控制时晶闸管与异步电动机绕组所形成的不同拓扑结构，详细分析了在发生短路、断相等各种故障时晶闸管与异步电动机绕组中通过的电流，为实现晶闸管的过流速断和异步电动机的可靠保护提供合理的保护判据。

Carbon nanotubes are coated with Ni by a series of processes of optimization (oxidations, sensitization and activation) used to add activated sites on the surface of CNTs before electroless plating.

通过对镀Ni前碳纳米管的氧化、敏化和活化处理，在碳纳米管表面增加活化点，成功地在破纳米管表面镀上一层金属Ni，并用TEM对镀Ni前后的碳纳米管进行了表征。

Since the turbine-driven feedwater pump failed to regulate directly the drum level of single boiler and problems like pressure overrun of main feedwater pipe existed, DCS was utilized to solve the problems for its features of shared information, powerful configuration functions and easy modification.

在对国电成都热电厂嘉陵2×142MW机组两炉一机单元给水系统控制方式进行分析的基础上，针对运行中出现的汽动给水泵不能直接调节单台锅炉汽包水位及给水母管压力超限等问题，利用分散控制系统信息共享、组态功能强大、修改方便的特点，在不增加硬件设备的情况下，通过软件组态增加了汽动给水泵调节单台锅炉汽包水位调节回路和给水母管超压及欠压保护回路，实现了机组在一炉一机单元运行和两炉一机母管运行2种运行方式下给水自动的合理控制，并解决了给水母管的压力保护问题，提高了机组运行的安全可靠性。

Therefore a GD sand-screening pipe is developed, which is helpful to the environment protection. This new sand-screening pipe consists of center pipe, sand filter and guide shoe. The center pipe is machined from 64mm tubing, and the sand filter is made from silica sand, cement, additive.

这种环保型滤砂管由中心管、滤砂器及引鞋组成，中心管采用 6 4mm油管加工而成，两端为特种 6 4mm平式油管螺纹，管体上每米均匀分布 72个直径 10mm孔眼；滤砂器是根据不同技术标准筛选不同粒度的石英砂、油井水泥、添加剂和水按配比加工压制的。

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。