双孔的

Through analyzing the failure reason of double row tapered hole cylindrical roller bearing , the problem of bearing early failure which is due to unproper installment and usage during installing, debugging and trail running is solved.

通过对双列锥孔圆柱滚子轴承的失效原因进行分析，解决装机、调试和试车过程中经常出现的因安装使用不当造成轴承早期失效的问题。

Cypress charcoals, which were prepared under super-heated steam and had a relatively large amount of me-sopores, were used in electric double layer capacitors in 1 mol/L H2SO4 electrolyte.

通过过热蒸气活化法制备的柏木炭中含有大量的中孔，可用于制备以1mol/L硫酸为电解液的双电层电容器。

Methods: NG108-15 cells were cultured in vitro at 37℃in a humidified atmospherecontaining 5％CO_2. Aβ_(25～35) fragment was dissolved with deionized distilledwater and aged for 4 days at 37℃. The cells were exposured to 5μmol/LAβ_(25～35) for 24h to establish the cell model. Twelve rabbits were divided intotwo groups at random, and garaged with MWD or physiological saline controlrespectively for 7 days to collect two kinds of cerebrospinal fluid, theyare CSF from rabbits treated with MWD and CSF from rabbits treated withphysiological saline.

NG108-15细胞在37℃、体积分数为5％的CO_2培养箱中培养，Aβ_(25～35)溶解于双蒸水中，置于37℃培养箱中老化4d，使其寡聚，毒性增强，细胞被置于浓度为5μmol／L的Aβ_(25～35)中作用24h，建立起AD细胞模型。12只清洁级大耳白家兔购于华中科技大学同济医学院动物中心，将其随机分成两组，分别给与等量的加味温胆汤和生理盐水灌胃7d，末次给药后1h内用水合氯醛将给药组白兔麻醉，1.2ml／kg，无菌条件下用7号注射针头从枕骨大孔处垂直进针，抽取清亮含药脑脊液。

Double row tapered hole cylindrical roller bearings with inner ring and shaft are tapered 1:12, bearing lock nut with a round led a bearing in the axial displacement of the inner ring bearings and expansion, to reduce or eliminate Bearing radial clearance purposes.

圆锥孔双列圆柱滚子轴承的内圈和配合轴径均为1：12圆锥，用圆螺母锁紧轴承则使轴承在轴向产生一个位移并使轴承的内圈膨胀，从而达到减少或消除轴承径向游隙的目的。

We started with a redesigned graphite chassis, now flat-fronted with twin mini-bumpers for impact-damage resistance, and with tweak reference center holes already drilled in. The steering servo mounts are all new Factory Team blue aluminum items with multiple mounting points to fit most servos.

我们已开始与一个重新设计的石墨底盘，现在平板门前双迷你保险杠影响损伤的抵抗力，以及与调整的参考中心孔已钻英寸督导伺服装置都是新厂队蓝铝项目与多个安装点最合适的伺服。

For bulk cylinder-forming diblock copolymers, a series of novel structures such as helices and stacked toroids are identified which cannot form in bulk block copolymers.

对体相形成柱状相的双嵌段共聚物，在不同孔径的孔内我们观察到了一系列体相不存在的螺旋和层叠圆环等新奇结构。

Abstract］ objective to assess the efficacy and safety of transurethral resection of prostatewith plasmakinetic technique and to improve the qualities of pkrp.methods the data of 273 patients with benign prostatic hyperplasiawere retrospectively studied baseing on the mastering of pkrp.the average maximum urinary flow rate,the average residual urinary volumeand the average international prostate symptom score were analysed.results pkrp was successfully performed on 273 patients.intraoperative blood transfusion was performed in 6 cases,no obturator nerve reflex,transurethral resection syndrome,permanent urinary incontinence occurred and no death cases occurred.the follow-up time was 2～26 months with an average of 5.63 months,postoperative average qmax increased to 15.9 ml/s,and ruv decreased to 16.0 ml/s and the average ipss was 9.compared with those of preoperation,the differences were significant.conclusion pkrp has superior tissue cutting function and hemostasis.it is suggested that transurethral bipolar plasmakinetic resection of prostate be effective and safe.

目的 探讨经尿道双极等离子前列腺切除术的安全性与有效性，提高pkrp质量。方法回顾性分析273例良性前列腺增生患者pkrp资料，比较手术前后最大尿流率、膀胱剩余尿量及国际前列腺症状评分。结果 273例手术均顺利完成，术中输血6例，无闭孔神经反射、永久性尿失禁、经尿道电切综合征及死亡病例，随访2～26个月，平均5.63个月，qmax平均增至15.9 ml/s，ruv平均降至16.0 ml，ipss平均9分。与术前相比，各项指标均有明显改善。结论 pkrp具有良好的组织切割功能及可靠的止血作用，治疗bph安全有效。

Two pairs of chutes and holes on the cleaning base and the brushes form the double chute swing mechanisms by the connection of an axis and cause the brush to cling to the wall surface to clean by the friction feedback, thus achieving effective cleaning when walking error occurs and the pipe section changes, furthermore, the larger the friction on the wall surface is, the larger the forward pressure on the wall surface is, therefore, the dirtier the wall surface is, the higher the cleaning efficiency is.

清扫底座与刷子夹上的两对滑槽和孔通过轴的连接形成双滑槽摆动机构，并通过摩擦力反馈使得刷子能够紧贴壁面进行清洗，从而在出现行走误差和管道截面变化时都能够有效清洗，并且壁面摩擦力越大刷子作用在壁面上的正压力越大，因此壁面越脏时清扫效率越高。

Eastern city eastern machine stake work machinery plant is professional to design to make the piling machine of diesel oil and the type piling hammer of guide bar of diesel oil, stake machine product has DD1, DD2, DD4, DD6, DD12, DD18, DD25, DD32, DD40, DD53, DD63, DD73, DD83, DD93, DD108 and DD120 to wait for the series type piling hammer of guide bar of diesel oil, basis the requirement of customer design production the series that form a complete set with the machine hammer of piling machine go to pipe rack and step Lu frame , with caterpillar frame, as well as various series, speed speeds , electro-hydraulic press , only two letter hoists, include Q841 and C268K of the extensive application of the former Soviet Union Jiao vehicle and various series in hole vibration hammer.

东台市东机桩工机械厂专业设计制造柴油打桩机和导杆式柴油打桩锤，桩机产品有DD1、DD2、DD4、DD6、DD12、DD18、DD25、DD32、DD40、DD53、DD63、DD73、DD83、DD93、DD108、DD120等系列导杆式柴油打桩锤，根据客户的要求设计制造与打桩机机锤相配套的系列走管架、步履架、和履带架，以及各种系列、快慢速、电液压、单双简卷扬机，包括前苏联广泛应用的C268K、Q841铰车和各种系列的中孔振动锤等。

Cases recovered completely, and some various complications occurred in 14 cases. Conclusion Harrington rod is an effective internal fixation device for the reduction of fracture and dislocation of vertebra with its longitudinal stress. This device corresponds to the biomechanics of the spinal column. But during the operation, complications should be avoided or diminished by performing strict aseptic technique, bending of the rod to a proper physiological curvature which corresponds to injured spine, doing posterior bone grafting and using corset support after operation.

结论哈氏棒是一种符合生物力学的内固定器材，具有较强的纵向撑开力，能使骨折脱位得到很好复位，但亦具有一些缺点，如术中能做到置钩前预制好骨孔，并将哈氏棒预弯成与伤段脊柱相应的生理弧度，加用钢丝固定双棒，行后路植骨融合，术后使用支架保护，严格无菌操作等，可大大降低并发症的发生。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。