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Professional production: tension springs, pressure springs, multi-project spring, scroll springs, plate springs, leaf spring, butterfly springs, bell, candle cup, hinge, wind bell tube, aluminum chain, twisted chain, wave sub-chain, O word chain , snake chains, axes

专业生产：拉力弹簧，压力弹簧，多工程弹簧，涡卷弹簧，板弹簧，片弹簧，蝶形弹簧，铃铛，烛杯，合页，风铃管，铝链，扭链，波子链，O字链，蛇链，轴心，异型螺丝，螺母，螺钉等精密五金零部件。

This text is introducing the most popular product in engeneering machine ZL30 forklift 'transmission case in the function as well we introduce the principle of the design of transmission case .together with the main parts in transmission ,such as the fluid strength ,the overdrive clutch,the structure of planet rowand so on. and in the detailed introduction ZL30 forklift the overdrive clutch and the output shaft design process, and proposed in four axes design's improvement measure.

本文主要介绍了工程机械中应用最广泛的ZL30轮式装载机的行星式变速箱的功能和总体设计思想，并介绍了其中主要零件如：液力变矩器、超越离合器、行星排结构的用途和功能，并详细的介绍了ZL30装载机中超越离合器和输出轴的设计过程，并提出了四轴设计中的改进措施。

In order to function as a single compression member, the C-sections should be connected at a close enough spacing to prevent buckling of individual C-sections about their own axes parallel to the web at a load equal to or smaller than the buckling load of the entire section. For this reason, Sec.

为了起到单个抗压构件的作用，两段U型钢要贴得足够紧，以避免各段U型钢对平行于筋的自身轴的纵向弯曲——它是自身轴的荷载等于或小于整个断面的临界纵向荷载而造成的。

Minitype rolling mill exploitation has gone to the lavatory for the experiment and scientific research have provided quite a few , the improvement the main body of a book has been carried out on present use rolling mill of precise copper of our university laboratory, has adopt gear wheel deflection falling-in way to have realized rolling mill controlling to rolling thickness , the rolling mill improving the day afer tomorrow has adopt three set of gear wheels to be engaged , two set of gear wheels axes among them may slide respectively along the erect sliding rail and the arc sliding rail , come true thereby to controlling rolling thickness.

小型轧机的开发为实验和科研提供了不少方便，本文对我校精密铜实验室现用轧机进行了改进，采用了齿轮变位啮合办法实现了轧机对轧制厚度的控制，改进后的轧机采用三组齿轮啮合，其中两组齿轮的轴线可分别沿竖直滑轨和弧形滑轨滑动，从而实现对轧制厚度的控制。

The new machine can cut a taper with its top point fixed. The cutting motion of torch is realized by the composite revolving of the two orthogonal axes.

依据数学模型对机构的结构进行优化设计，机构采用平面的平行四边形机构，通过回转轴和连杆的转动合成割枪的切割运动。

Like the other power units in this range, the distance between cylinder bore axes on the V12 TDI is 90 mm (3.54 in.).

像在这个范围内其他动力装置，气缸之间的距离饶有兴趣轴的V12 TDI发动机是90毫米（3.54英寸）。

The in-depth analyses and simulation calculations of two simplification methods are carried out in this paper. Then it is pointed out that the equivalent d- and q-axes damper winding model is not suitable for calculating the internal short circuits because the concept is not applicable in this situation, and the errors caused by it are too obvious to be accepted in electrical engineering; while the approximate damper cage model is acceptable since it not only meets the accuracy requirement of electrical engineering but also saves calculating time for computers.

本文对阻尼回路的2种简化方法进行了深入分析和仿真计算，指出等效d轴和q轴阻尼绕组模型应用于电机内部短路计算时，物理概念上存在缺陷，且会造成过大的误差、在工程上无法容许；而近似阻尼笼的处理方法既能满足工程精度要求，又可节省计算时间。

The floating model is defined with a datum point indicates the model's position. Each kind of models is associated with a set of pose parameters to describe its rotation about the three orthogonal axes and shape parameters to describe its scales along predefined directions.

零维的浮测标拓展到三维的浮测模型，除了具备可调整的三维位置参数外，还依模型种类增加了各方向的伸缩尺度、空间旋转等参数，可想像成一个漂浮在空间中，可移动、旋转、缩放大小以量测地物的模型。

In this paper,the deflection aberration theory at extra-large deflection angle is studied by means of the curved axes theory.

本文采用曲轴电子光学理论，研究了超大偏转角情况下的偏转象差。给出了曲轴二级和三级象差公式。

At the same time, the electric potential and the electric intensity at the central axes and in the distance area of the charged ring are discussed.

本文中我们运用椭圆积分法计算出了均匀带电圆环空间电位和电场分布，使我们对其产生的电位和电场有一个全面了解。1均匀带电圆环的电位均匀带电q的圆环半径为b，以环心。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。