等轴的

But along with the highway traffic development, the volume of traffic increases, the axle load increases and the canalization and so on, set a higher request to the structure and performance of the road surface.

但是随着我国公路交通的发展、交通量增大、轴载增加、交通流的渠化等，对路面结构和材料性能提出了更高的要求。

The transmission, reflection and phase properties of anisotropic thin films with columnar microstructures are derived from EM theory.

根据电磁场理论的矩阵分析方法推导了光波在具有柱状结构的双轴薄膜中的反射系数、透射系数和相位关系等光学特性。

And it is very difficult to control the tool contouring with nanometer lever accuracy.

课题研究的主要内容包括：超精密机床进给机构的运动特性研究，进给系统的伺服控制技术和跟踪控制技术研究，两轴联动轮廓误差控制技术研究等。

The modiolus is the point of converg...

结论面部蜗轴是口周肌肉的止点，与鼻唇沟的形成、SMAS、面部表情的表达、发音和语言等关系密切，在美容整形外科中具有重要作用。

When the crosshead coupling is in the application, the kinematics model can be made by applying the principle of mechanism.

用机构学原理，建立了滑块联轴器及其应用时的运动学模型，分析了其产生的位移、速度、加速度和惯性力等运动学问题，并推导出相应的计算公式。

A cut is usually used to illustrate the shape of a cutting plane of an object or the holes and grooves in the solid shaft.

断面一般用于表达机件某一部分的切断的表面的形状，或轴及实心杆上孔、槽等的结构形状。

The first section is descriptive geometry, including basic knowledge of cartography and projection, projections of point, beeline, plane and their interrelations, projection transformation, curve, curving plane, the projection of curving plane solids, line of section, line of intersection, section and segmentation, elevation projection, dimetric projection.

第一部分为画法几何：其中有制图基本知识，投影的基本知识，点、直线、平面的投影及它们之间的关系，投影变换，曲线、曲面及曲面立体的投影，截交线与相贯线，剖面图与断面图，标高投影，轴测投影等。

Mutants withdefects in epiboly, axis, somite, head, and cardiac and blood systems were identifiedby observing morphological changes in F3 embryos. Additionally, in situhybridization was adopted to identify mutant lines with altered expression patterns ofdpr2, frb35 and insulin.

通过对 F3 代胚胎的表型观察，鉴定了在外包、体轴、体节、头部、心血管系统等表现异常的突变体；通过原位杂交的方法，筛选了 dpr2，frb35 和胰岛素基因表达异常的突变体。

In this paper, we have briefly introduced near-axis properties of passive axisymmetrical eiectrostatic field in vacuum,have presented the basis of dvawing equipotential line and have simultaneously given specific method procedure and example, Finaly, the function of quatitative analysis in the electron-optical systems have been pointed out.

文中简要地介绍了真空中无源轴对称静电场的近轴性质，提出了描绘等位线的依据，给出了具体方法、步骤与实例，指出了其在电子光学系统定性分析中的作用。

Several factors are taken into account, such as design parameters, eccentricity ratio, loading history, quantity of carbon fiber reinforcement and space of straps.

结果 给出了柱的荷载挠度曲线、混凝土轴向应力的分布情况、纤维布应力的分布情况等。

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