中柱

ABSTRACT Drilling time will be lasted and lateral force on casing exerted by drill pipe will increase in case of drilling deep well, ultradeep well, high inclined hole, extended reach well and horizontal well, therefore, friction and wear between casing and drill pipe became a severe problem.

在深井、超深井、大斜度井、大位移井及水平井中，钻井时间延长、钻柱作用在套管上的侧向力增高，因此套管和钻柱的摩擦与磨损问题越来越突出。

In the process of oil drilling, drillstring and rock bit are main drilling tools. The fact of their failure would cause serious downhole accidents.

在油气田钻井过程中，钻柱及钻头是主要的钻井工具，钻头及钻柱的失效将导致严重的井下事故。

The purpose of this study was to explore the clinical value of the platelet antibody screening and typing in platelets transfusion by using microcolumn gel immunoassay. The platelets antigenantibody reactions including the antibody screen and blood crossmatch were detected by MGIA.

为了探讨微柱凝胶免疫分析技术在血小板输注中血小板抗体筛选和配型的临床应用价值，运用微柱凝胶免疫分析技术检测血小板抗原抗体反应，包括抗体筛检、交叉配血。

The purpose of this study was to explore the clinical value of the platelet antibody screening and typing in platelets transfusion by using microcolumn gel immunoassay. The platelets antigen??antibody reactions including the antibody screen and blood crossmatch were detected by MGIA.

为了探讨微柱凝胶免疫分析技术在血小板输注中血小板抗体筛选和配型的临床应用价值，运用微柱凝胶免疫分析技术检测血小板抗原抗体反应，包括抗体筛检、交叉配血。

Methods: Using proper sample treatment method, applying non-polar capillary column (HP-1) to replace packed column for the determination of sodium cyclamate in food.

采用适当的样品处理方法，应用弱极性的HP-1毛细管柱取代填充柱检测食品样品中的甜蜜素。

A simplified calculation of the fire resistance of four-faced reinforced concrete columns is presented,which considers the effects of material properties,mechanical performance,stability deterioration,and lateral deflection of the columns under high temperature.

钢筋混凝土柱是建筑结构中十分重要的构件之一。火灾下柱丧失其承裁力，可能导致建筑物局部甚至整体破坏，对火灾后结构的修复也带来了困难。

Its include: barrel, set up in the barrel components of the screw, fuel tanks, motor oil, the radio front plate, Radio Taiwan after the board and guide column, referred to the radio through the bottom of the front plate connected to the guide block guide Column, referred to Taiwan after the radio connected to the rod on the board.

其包括：机筒，设置在机筒元件中的螺杆，油缸、油马达、射台前板、射台后板、引导柱，所述的射台前板通过下端的引导块连接在引导柱上，所述的射台后板连接在活塞杆上。

In order to deeply reveal the smoothing mechanism of roller burnishing and to overcome the difficulty in the selection of the burnishing cross feed dependent mainly upon experiences and hand feel, the roller burnishing process is taken as an issue of plane-strain mechanics and the micro-plastic deformation area is determined on the basis of the Von-Mises yield criterion and by using the Boussinesq-Flamant solution. Then, the contact pressure distribution is obtained based on the Hertz contact theory, and the stress distributions in the burnishing tool and the workpiece are respectively revealed.

为深入了解滚柱滚压表面光整机理，解决目前滚压量选择完全凭经验和手感的不足，将滚柱滚压加工过程视为平面应变力学情形，利用Boussinesq-Flamant问题的求解并根据Von-Mises屈服准则得出了滚压局部发生微塑性变形的区域，根据Hertz接触理论得出了滚压接触压力分布及滚压过程中工件和工具的应力分布。

The trace amount of impurities,namely C5,tert-butyl alcohol,di-secondary butyl ether,methyl ethyl ketone and secondary butyl alcohol,in C4 hydrocarbon from butylene hydration tail gas were analysed by means of gas chromatograph with a column packed with sebaconitrile and polyethylene glycol-20M,and liquid-phase admission valve.

2m×4mm为填充柱，采用液相进样阀液态直接进样的填充柱气相色谱法分析了丁烯水合尾气C4烃中的C5、叔丁醇、二仲丁醚、甲乙酮及仲丁醇等微量杂质的含量。

It is found that TiO2/pillared MMT (TiO2/MMT) composite catalyst exhibits the best degradation activity to methylene blue and methyl orange compared with other semicondutors/MMT, such as SnO2/MMT, Fe2O3/MMT and Cu2O/MMT with different energy gaps that is closely correlated with the formation of stable pillar stucture and appropriate energy gap in the TiO2/MMT.

在对具有不同能带宽度的TiO2、SnO2、Fe2O3和Cu2O四种半导体/蒙脱土复合催化剂的研究中，发现TiO2柱撑蒙脱土(TiO2/MMT)对亚甲基蓝和甲基橙有最好的光催化降解活性，这是与其形成稳定的层柱结构和TiO2具有合适的能带宽度密切相关的。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐