三轴的

Intermediate image of three-mirror anastigmat having two image surfaces was between secondary and tertiary mirror. In order to fold the optical path, four-mirror anastigmat was designed by adding the spherical reflective mirror at intermediate image.

带一次中间像面的离轴三反系统的中间像位于次镜和三镜之间，为了进一步折叠光路，在中间像面处加入球面反射场镜，从而成为离轴四反。

The result demonstrates accent of true and false in 34 AD 34, inside diaphragm 27, the haematoma inside the wall interlining of model of 7;27 exemple is three-dimensional into resemble all showing clear crevasse, crevasse of aorta bend ministry with arrowy shape show optimal, fall aorta crevasse shows with position of axle and coronal shape optimal, VRT shows pathological changes whole journey is clearer, but reach to crevasse inside the indication of diaphragm reachs position of axle as MIP, MPR.

结果34例AD中显示真假腔34例，内膜片27例，壁内血肿7例；27例典型夹层三维成像均显示明确破口，主动脉弓部破口以矢状位显示最佳，降主动脉破口以轴位及冠状显示最佳，VRT显示病变全程较清楚，但对破口及内膜片的显示不如MIP、MPR及轴位。

Another MCU, 89C2051 is used to realize the control of the three rows LED monitor showing coordinates of axis X and Z axis and other state of the system. Charnel A and C of 8155 are used for editor keyboard, which make the inputting or editing of the NC code and data possible. Charnel P1 of 8031 is used for the operation keyboard such as system power on/off and movement of axis X or Z. a programmable parallel I/O chip, 8255, is used to achieve system I/O and the transmission of other information. In summarize, the system developed is characterized by its simplicity, low development cost and high reliability.

在CPU存储器扩展电路设计中， CPU选用MCS-51系列的8031单片机，外扩32K的程序存储器和 8K的数据存储器，分别用于存放系统管理程序、数控加工程序以及运算数据；在显示电路设计中，选用MCS-51系列的89C2051单片机作为从CPU，控制三排LED显示器，用于X轴、Z轴动态坐标以及相关数字的动态显示；在手动键盘和编辑键盘设计中选用8155芯片的PA口和PC口作为行、列母线，扩展矩阵式编辑键盘，用于程序和数据的输入或编辑，同时选用8031单片机的P1口扩展手动键盘，用于系统启动、停止以及运动部件在X、Z轴方向的手动控制；在I/O口扩展电路设计中选用8255芯片扩展输入输出口，用于接收和传送开关量及相关信息。

The main work of this paper includes:① The calculation of the structure parameters and 3D modeling in I-DEAS of the crown gear coupling are carried on.

本文的主要研究内容有：①对鼓形齿联轴器进行结构尺寸设计计算，应用I-DEAS 软件对鼓形齿联轴器进行三维实体造型。

In this paper, a new method for data processing is presented based on amelioration of the traditional arithmetic,and the higher accuracy of measurement can be achieved in the larger axial distance. In the data processing ,the linear fitting method is adopted to process a series of discrete points.

文章介绍了一种新的数据处理方法，其先对各物点的轴向光强采样值进行线性拟合，再由拟合得到的直线确定最大光强所对应的轴截面位置，这样可以在较大的轴向采样间距下获得较高精度的三维轮廓信息。

The true action is only to be secured when the amount of ellipticity is exceedingly slight, the centre of motion of the revolving piston-shaft being in a line intersecting the minor axis, at about one-third of the length of such an axis.

真正的行动只是被担保的数额时，椭圆是非常轻微的，该中心的议案，旋转活塞轴正处于一条线相交的轻微轴，在约三分之一的长度，例如一轴。

1 Refers to the coastline along the three axis and a horizontal development南渡江along the longitudinal axis of development.

+1 是指沿海岸线的三个轴和横向发展南渡江沿纵轴发展。

Product circumstances: Company main products are two distinct types: 1, chemical fiber textile equipment, including a variety of accessories such as: chuck shaft, reciprocating shafts, roller shafts and other products more than 2,000 species, JRT1 ~ JRT16 series winding machine, of which 16 JRT16 melt-spinning spandex spindles winding machine for the national patent product, JRT1 Jilin winding head for high-tech products, all kinds of chemical fiber textile engineering in three production lines; 2, and the MTR railway passenger vehicles Valves products, such as: height adjustment valve, pressure valve, connecting rod and so on.

产品情况：公司主要产品分两大类：1、化纤纺织设备，其中各种配件如：卡盘轴、往复轴、槽辊等产品2000余种，JRT1~JRT16系列卷绕机，其中JRT16十六锭熔纺氨纶卷绕机为国家专利产品，JRT1卷绕头为吉林省高新技术产品，各种化纤纺织工程生产线三种；2、铁路客车及地铁车辆上的阀类产品，如：高度调整阀，差压阀、连杆等。

Finally three kinds of usual methods to determinate the limit values for axial compression ratio of frame columns, their merits and shortcomings are analyzed according to comparison and in the end this paper adopts the measure of curvature ductility to determinate the limit values for axial compression ratio of the arbitrarily inequiaxial special-shaped R.C columns.

最后介绍了目前确定框架柱轴压比限值常用的三种方法，并对比了三种方法的优缺点，最终采用延性度量的方法确定了不等肢异形柱的轴压比限值，对实际工程具有很好的参考价值。

Observe the tectological changes of the poroma, count the number of osteoblasts, determine the ratio between trabecula and marrow in the trabecula area of the newly born bone.

以三维有限元法分析肱骨中段横形或斜形骨折在骨痂同样充满断端、骨痂力学性能相同，分别在肢体远端纵轴、水平轴和矢状轴方向上施加相同载荷的条件下，比较两种骨折断端间的最大应力值和最大位移量，及肢体远端的最大位移量。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。