轴面

Methods: Twenty five patients with congenital missing of one or two incisors, 17 patients were treated with extraction, 5 patients were treated orthodontically and prostbodontically. 3 patients were treated with slenderizing to solve crowding and adjust median line and Bolton index.

25例先天缺失下颌个别前牙1～2颗的患者，其中17例采用减数方法进行矫治，5例集中间隙，结合修复进行治疗，3例结合邻面去釉、改变牙轴等手段解除拥挤，采用调整中线和Bolton指数的方法进行矫治。

The elements are also used to get the section polygons of such composite surfaces as the whole aircraft at a given body station, then a section area is approximated with the sum of trapezoidal areas between such sides of polygons that are not covered by any other component and a reference axis.

离散出的面元还被用于求取全机这样的组合曲面在某一站位处的横剖面多边形，而横截面积则用累积多边形不被其他任意部件遮挡的各边与参考轴间的梯形面积予以近似。

Numerical simulations on the quasi-steady and unsteady flow in Aachen 1-1/2 Axial-Flow turbine stages are performed in this paper, and the influences of the rotor-stator interaction on the fluctuating velocity, flow angle, wall-pressure and loss mechanism are discussed.

本文对Aachen一级半轴流式透平进行了准定常及非定常流动的数值模拟，讨论了引发动静干涉效应的主要因素，分析了非定常效应对叶栅通道中脉动速度、气流角、型面压力分布以及损失结构的影响。

Taking AutoCAD R14 as the operating platform, a machining simulation system for 5 axle coordinated CNC tool grinder is developed by using ActiveX Automation technology.

以AutoCADR14为操作平台，利用ActiveXAutomation技术开发了五轴联动数控工具磨床的加工模拟软件系统，该系统能模拟使用各种类型的砂轮磨削各类回转面刀具的加工过

Processing and testing equipment more than 80 Taiwan by foreign imports, with Japan's OKUMA MCR-20A-5 face of the goal processing center, Germany KLINGELNBERG company's seven-axis CNC Grinder HNC35S, Japan and OKUMA MAZAK multiple horizontal, legislation Machining center, Switzerland's Ball Screw REISHAUER grinder and worm grinder; Finland FINN-POWER NIGHT TRAIN company's digital sheet metal flexible production line, Germany Wagner's electrostatic spraying line; Germany's fast-CNC laser cutting machine, Germany WENZEL companies coordinate measuring instrument, Germany's PNC/65 KLINGELNBERG gear measuring centres and the like.

加工和检测设备80多台均由国外引进，拥有日本OKUMA公司的MCR-20A龙门式五面体加工中心，德国KLINGELNBERG公司七轴联动的HNC35S数控磨床，日本MAZAK和OKUMA的多台卧式、立式加工中心，瑞士REISHAUER公司的滚珠丝杠磨床和蜗杆磨床；芬兰FINN-POWER公司的NIGHT TRAIN 数字化柔性钣金生产线，德国瓦格纳公司的静电喷涂流水线；德国快通公司的数控激光切割机，德国WENZEL公司的三坐标测量仪，德国KLINGELNBERG公司的PNC/65齿轮测量中心等等。

Relying on the several years experience and technology power of CNC four axis, the factory has become the specialized one manufacturing rotary products like cylinder cam, type cam, abnormal cam, rolling cutter, circle cutter, propeller, impeller, screw groove, adjustable screw groove, closed curve groove etc.

凭借多年CNC四轴加工精湛的生产技术力量，专业生产加工回转类产品，如圆柱凸轮、平面凸轮、异形凸轮、滚切刀、圆切刀、螺旋桨、叶轮、螺旋沟槽、变距螺旋沟槽、封闭曲线沟槽等，并可加工箱体类精密的空间定位孔、面等。

Alignment –Excessive angular misalignment and/or axial displacement is detrimental to proper function of the companion flange face-seals built into the valves.

对准–过分的角度错位和/或轴向位移对于内置在阀门的法兰面密封组件的正常功能是有害的。

Underground whole-space transient electromagnetic method was tested at the driving face of a drift in a coal mine for detecting water-bearing zones ahead of tunneling.

根据初探结果，采用不共面同轴偶极观测方式时，UWTEM在巷道掘进头前方的有效探测范围约为70m，巷道每掘进50m进行一次跟踪探测。

Combining with the characteristics of membrane surface fulcrum system of Expo Axis, the main installation technologies are put forward, including installing external and middle masts synchronously fixed by temporary wind cable, installing horizontal cable firstly and backstays at last during construction.

结合世博轴膜面支点系统的特点，指出其主要安装技术路线，即外桅杆、中桅杆同步安装，临时缆风索固定，施工区间先安装水平索最后安装背索。

The horizontal bending moment and bending stress of the crossbeams rise quickly with increasing of the constraint stiffness of the lower chord joint to the crossbeam, the axial stress of the low chords and the continuous length of the floor system and with decreasing of the distance between the stringer and the low chord.

桥面系的连续长度和下弦杆的轴应力越大、下弦杆结点对于横梁的约束刚度越大、纵梁与下弦杆的距离越小，横梁的面外弯矩和弯曲应力越大。

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％。