主轴

This part is divided into four small parts, they can be summarized as the following: 1 The symmetry and homogeneity of tall building is presented in four aspects:(1) The lateral rigidity of tall building follows two principal axises direction and the characteristic of deformation are very alike.

第二部分概述；分为四小结，1）高层建筑结构的对称性、均匀性主要体现在以下四个方面，（1）高层建筑主体抗侧力结构沿两个主轴方向的刚度比较接近、变形特性比较相似。

On the principal xoz plane, the expressions of the ring parameters in terms of .the indices of refraction and geometry in biaxial crystals are derived.

本文以折射率主轴坐标xoz平面为例，推导出了双轴晶体中环参数的近似表达式。

Principal plane: Any plane that contains two principal axes is regarded as a principal strain plane, where AB refers to the maximum principal plane, BD, the minimum principal plane and AD, the intermediate one.

主平面：包含任意两个应变主轴的面称为主应变面。其中：AB面为最大主平面，BD面为最小主应变面，AC为中间中应变面。AD面-代表亚性面，BC-代表张性面

Meanwhile, for product integration, the camera module would be selected as a real example to do demonstration.

同时针对其产品整合性，以手机相机模组为主轴，做实例应用示范论证。

Fig. 3 illustrates the surface prole that is obtained by front and back cutting for a depth of cut of 0.5 mm, spindle speed of 750 rpm and feeds from 0.4 up to 1.0 mm/rev.

图。 3说明了表面轮廓是获得正面和背面切割的切削深度为0.5毫米，主轴 750转的速度和饲料由0.4上升到1.0毫米/转。

The high accuracy that Japanese essence is versed in development went machine tool main shaft to use stops pushball bearing.

日本精工开发出了机床主轴用的高精度止推球轴承。

Control rods each side of pushrod transmit inputs through rotor shaft to control lever on top of main shaft and down to blade pitch horns through pitch links.

控制棒每个推杆传输通过转子轴的投入，以控制主轴

A modern lathe usually has a quick-change gearbox located under the headstock and driven from the spindle through a train of gears.

一个现代的车床通常有快速更换变速箱下的启闭和驱动主轴通过一列火车的齿轮。

Modern lathes have a quick-change gear box. The input end of this gear box ix driven from the lathe spindle by means of suitable gearing.

现代车床有一个变速齿轮箱，齿轮箱的输入端由车床主轴通过合适的齿轮传动来驱动。

Finish to design the micro CNC, I have to investigate the adaptable parameters for cutting. This paper had calculated tool's radius, spindle's rotational speed, radial depth, and feed speed by the instantaneous cutting areas of the cutting forces model. To find out the instantaneous cutting areas by mathematica which can calculate the tangential, radial and axial component of cutting forces during cutting.

设计完微型工具机后，接著探讨最佳的切削参数，本论文采用瞬时投影面积的数学模型，且推导出利用刀具半径、主轴转速、径向切深、进给速度等参数来做为瞬时切削投影面积的函数，并使用软体mathematica算出瞬间面积大小，预测出切削过程里所产生的切线切削力、径向切削力和轴向切削力。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。