轴面

In order to implement NC ultrasonic grinding of parallel ruled surface ,calculation of cutter location and post processing method were introduced.

介绍了新研制的数控超声磨削成形加工机床的各运动轴，以及实现平行直纹面数控超声磨削加工的刀位计算和后置处理方法。

We have 7 CNC Machine center with three axes,2 bridge Machine center with pentahedral and all kinds of processing equipment.

公司配备有7台三轴CNC加工中心、2台五面体龙门加工中心和各类机加工设备。

In 2004,the company has developed WEGOT series curtain-wall equipments such as the tri-axial, pentahedral aluminum curtain-wall processing line, aluminium and pvc plate cutting machine, connecting corner cutting machine, new type double head, single head minute cutting saw, the four-head corner combination machine CNC, cutting saw CNC, improved type of multi-head combination drilling machine etc.

2004年，天辰铝机公司又引进国外先进技术，开发出"威高特"系列幕墙加工设备、三轴五面铝幕墙加工中心、铝塑板切割机、角接口切割机、新型双头精密切割、单头精密切割锯、数控四头组角机、改进型多头组合钻床等，其中，WEGOT幕墙加工中心已通过省级鉴定，产品性能接近于同类进口设备，其性价比高，填补了国内空白。

Graphite is a material of anisotropy, and has two different characteristic planes: basal and edge plane perpendicular and parallel the c axle respectively.

1石墨为高各向异性的材料，有两个不同的特征表面：分别与C轴垂直和平行的基层面和边界层面。

Point P'' is the intersection point of the concave area 11 with the cross-sectional plane of symmetry Y parallel to the reference axes y and z.

点P，为凹入区域11与平行于参考轴y和z的横截对称面Y的交点。

Two-axis machine tool feed system uses a typical stepper motor-driven ball screw transmission mode, in the saddle and the skateboard with bed bed bed between the saddle and the sliding surface of the rail plate affixed to TSF, sliding friction coefficient is very small, there is help to improve machine performance and production efficiency fast response.

机床两轴进给系统采用步进电机驱动滚珠丝杠的典型传动方式，在滑板与床鞍及床鞍与床身之间的滑动面处贴有TSF导轨板，滑动磨擦系数非常小，有助于提高了机床的快速响应性能及生产效率。

The formation mechanism of the screw structures on the surfaces of polytype crystals is discussed according to the theoretical model of anionic coordination polyhedron growth units.

本文用负离子配位多面体生长基元理论模型讨论了多型性晶体表面螺旋结构的形成，提出在多型性晶体中配位多面体呈层状分布，配位多面体的面为层的边界，上、下层负离子配位多面体不是呈镜象对称的，在三方晶系和六方晶系的晶体中是沿晶轴a、b错开，上、下两层负离子配位多面体体呈交叉对应，从而达到稳定平衡。

The temperature distribution was mainly influenced by the initial pressure of pressurizer under the condition of CMT drainage with sparger, the higher the pressure is, the thicker the hot water layer.

通过对CMT内水的轴向温度分析，发现CMT内的流体具有热分层特性，即上部为热水层，下部为冷水层，热水层内温度变化剧烈，吸收了蒸汽在液面凝结放出的大部分热量。

If θ=0?＃, it means that whisker axis is perpendicular to crack face, the energy dissipation caused by whisker-bridge join in zone of crack end achieves its maximum and the reintoughening effect of material achieves the best of all; along with growth of angle θ, the maximum principal stress in the matrix of whisker roots increases, when it achieves its limit, the whisker will be broken and orientation effect will be weakened.

当添加晶须与裂纹面法向形成角度θ时，随角度θ的增加，裂纹尖端拉应力增加。当添加角度较大时，晶须根部基体承受了较大的应力，易遭到破坏性崩裂。同时，晶须内部主应力与晶须轴向之间的角度也随角度θ的增加而增加，造成晶须折断，致使造成晶须拨出的体积分数φap减小，降低了增韧效果。

On the basis of the achieved result and the effect of stress such as minor principal stress, intermediate principal stress, hydrostatic pressure, stress Lode degree, a generalized hyperbolic failure function adapted naturally with the envelope form of Mohr-Coulomb criterion is proposed for brittle rocks; and a smooth failure function acquired by Yu Maohong is also presented. Thus, a generalized polyaxial strain energy strength criterion is created.

在分析脆性岩石强度的静水压力、中间主应力、最小主应力以及应力Lode角等4种效应的基础上，提出子午面上与Mohr-Coulomb准则包络线自然衔接的广义双曲线型破坏函数及八面体偏平面上光滑角隅型破坏函数，从而建立非线性广义多轴应变能强度准则。

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％。