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High load high temperature resistant, good performance, and braking stability, mud in winter and bad conditions, the disc brake driving drum brake easier than in a relatively short period of time to stop the car Can collapse in vehicle principls shrinkage occurs when the frontal impact crushing forward, to ensure the shrinkage crew chest from harm CAE simulation technology for application of the original design, the change process, CAE analysis method and combining with engineering design, analysis and design, CAE and the integration of CAD most of the vehicle in the design phase problems can be resolved through simulation, can be in concept design phase is accurately forecast and control components and vehicle performance and reliability, thus in the development initial can make the future product performance and structure index guaranteed.

高负载时耐高温性能好，制动效果稳定，而且不怕泥水侵袭，在冬季和恶劣路况下行车，盘式制动比鼓式制动更容易在较短的时间内令车停下可溃缩式转向柱会在车辆发生正面碰撞的时候向前溃缩，以保证乘员胸部免受伤害 CAE仿真技术进行的全面应用，改变了原来的设计方法和流程，CAE分析和工程设计紧密结合，实现了分析与设计同步、CAE与CAD的一体化使车辆的大多数问题都可以在设计阶段通过仿真得到解决，可以在概念设计阶段就精确地预测和控制零部件乃至整车的性能和结构可靠性，从而在开发初期就能使未来产品性能和结构指标得到保证。

The current status and latest advances in capillary isoelectric focusing electrophoresis are reviewed from 59 recent research articles. Evaluations and comments on carrier ampholytes, conditioning or coatings of capillary inner surface, and detection methods are reported. In addition, the aspects of qualit

介绍了毛细管等电聚焦电泳技术的发展和现状，特别对载体两性电解质、柱内表面处理和检测技术等方面的最新进展加以系统评述，并且对CIEF的定性能力、峰容量、重现性及其在生命科学方面的应用前景进行了讨论。

Three-dimensional transient and steady-state natural convection in cylindrical annuli filled with porous media has been studied by numerical calculation in detail.

本文采用数值计算系统地研究了多孔柱环内三维稳态和暂态自然对流流动和传热。

The level moving out of place has certain thickness, the penetration to be good, extends the penetration entire dam area, mostly along angle gravel lava and aphanites basalt contact face growth.

层内错动带多呈缓倾角状，在岩流层中普遍发育，尤其第三岩流层中部(P2β32-2、P2β33)的柱状节理玄武岩层中，错动带的发育程度明显高于其他岩层。

We can lead out the equivalent border integral equation by Green the second equation,dividing the inner border in the liquid into a series strip of awls shell or cylindrical shell ,and solve border integral equation along different segment of border, then lead out border integral equation.

由Green第二恒等式导出等价的边界积分方程，将液体内边界分成一系列锥壳或柱壳状条，对边界积分方程进行分段积分，导出边界元格式方程。

A method for Pendimethalin quantitation was established by using diamyl phthalate as internal standard with GC. The chromatographic column was HP-5, and temperature program was used: 200℃ for 0.5 min, programmed to rise at 10℃ to 240℃, then isothermal for 2.5 min.

采用HP-5石英毛细管色谱柱和FID检测器，以邻苯二甲酸二戊酯为内标物，在适宜的色谱条件下对二甲戊灵原药进行定量分析。

Institute for the Control of Agrochemicals of Hubei Province, Wuhan 430070, China Abstract: A gas chromatographic method applied to determination of a paint for window screen is described using with an AT-101 capillary column and diamyl phthalate as internal standard. Three ingredients (propoxur, permethrin and cypermethrin) in a formulated mixture were successfully analyzed under a single set of conditions.

湖北省农药检定管理所，武汉 430070 摘要：介绍了用AT-101毛细管柱，以邻苯二甲酸二正戊酯为内标，对灭蚊窗涂剂中3种有效成分残杀威、氯菊酯、氯氰菊酯同柱同条件下定量分析的方法。

Utilizing the reversed-phase high performance liquid chromatogram to carry out further purification to the deer placenta polypeptide, the best purifying condition of separation is: Chromatogram column Hypersil ODS C18 (4.6*250mm), A liquid 0.1% TFA /ACN, B liquid 0.1% TFA / water, in 30min10% A ～50% A and 90% B ～50% B linear gradient elutes, velocity of flow 1.0mL/min, temperature 30℃, detecting wavelength 214nm.

利用反相液相色谱技术对鹿胎盘多肽进一步纯化，最佳分离纯化条件为：色谱柱 Hypersil ODS C18(4.6×250mm )，流动相 A 液0.1% TFA/乙睛，B 液0.1%TFA/水，30min 内10%A ～50%A ，90%B ～50%B 线性梯度洗脱，流速1.0mL/min ，温度30℃，检测波长214nm 。

To the injection pump and governor injected with an appropriate amount of petrol or diesel, repeatedly rotating camshaft, so that fuel injection pump and governor tappet fly ball movement and other components easily and prevent rust issuers, resulting in speed diesel engine.

1向喷油泵及调速器内注入适量的汽油或柴油，反复转动凸轮轴，使喷油泵挺柱和调速器飞球等部件运动自如，防止锈蚀发卡，导致柴油机飞车。

What's more,the three-dimensional velocity,density and pressure distribution of the flow field in the gravity-fed 3-product H.M.cyclone were studied as well,some conclusions were summarized.

通过对无压给料三产品重介质旋流器流场的三维速度、压强、密度和空气柱的数值模拟研究，对无压给料三产品重介质旋流器内的流场有了更深入和细致的了解，得到了几点有意义的结论。

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