中轴的

This paper deals with the aberrations of optical systems consisting of cylindrical components with their axes, parallal and having a common axis of symmetry.

本文首先由柱面系统中描写光线所须的参数和对称性，确定了同轴柱面系统的独立象差数是八个，而对无限远物体而言则只有六个。

In engineering drawings,horizontal oblique axonometric projection of shade and shadow on spheric surfaces can be drawn only in special light ray directions and by approximate methods,causing great trouble.

工程图学中，用传统的作图方法求圆球及阴影的水平斜轴测投影，只能在特殊光线方向下，用近似方法绘制，且作图非常麻烦。

It suggests that the prescription can accerelate transportation of axoplasm of clamped nerve.It is related with improvement of local micro-circulation.It may be one of the mechanism in promoting regeneration of peripheral nerve injury in clinic and experiment.

提示：本方可加速钳伤神经的轴浆运输，这与其改善损伤局部微循环有关，也可能是临床和实验中，本方促进周围神经再生的作用机理之一。

It transfers the slip power to mechanical power and then feed the power back to the shaft of the motor, or directly feeds the slip power to the alternating current net, so as to ensure the speed regulation a higher performance and higher power utilization ratio.

它可以把转差率转变为机械功率反馈回电动机机械轴上，或把转差功率反馈至交流电网中，使得具有良好的调速性能和较好的功率利用性。

The cardo is the first or proximal piece, and, in many insects, is the only portion directly attached to the head

轴节是第一个或最近体躯的骨片，在许多昆虫中是与头部直接相连的唯一部分。

The red channel in a normal map encodes the left-right axis of normal blue channel encodes vertical depth.

法线贴图中的红色通道编码了法线的左右轴，蓝色通道编码了垂直深度。

In the process of design in, look for the most reasonable arch rib cross section, arch axis coefficient, arch ring wall thickness is the valve key of design.

在设计过程中，寻找最合理的拱肋断面、拱轴系数、拱圈壁厚是设计的关键。

Results showed that the elongation of mesocotyl and internode of coleoptile played important roles in the seedling emergence of the weedy rice from northern China.

研究结果表明，在中国北方发现的部分杂草稻具有较强的中胚轴伸长特性和芽鞘节间伸长特性。

Based on the method of numerical simulation, the diameter of steel billet, entrance half angle of concave die and the dimension of spline were analyzed for the forming force on the spline processing with the help of a rigid-plasticity finite element software Deform 3D.

借助刚塑性有限元软件Deform-3D，采用数值模拟的方法分析了矩形花键轴冷挤压过程中，坯料直径、凹模入模半角及键齿尺寸对花键成形力的影响。

The acoustic analysis results of axial configurative tongue design with aperture or comb shaped can reduce the BPF peak effects. Therefore we can not only receive better sound quality on the experiments, but also get a similar effect in fluent 6.2 simulations.

结果在声场分析方面，应用孔穴或梳状轴向舌端构形确有降低叶片通过频率声压峰值之效果，因此可获得较佳的音质优化程度，同时在fluent 6.2 中所模拟得到与穿孔型舌端有相近的结果趋势，且其出风口质量流率高转速时明显优於标准舌端

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。