查询词典 centre angle

Suppose the harried waiter cuts the pizza off-centre, but with all the edge-to-edge cuts crossing at a single point, and with the same angle between adjacent cuts.

假设急匆匆的服务生是从偏离中心的位置切一块披萨的，但是所有边-到-边的切线都相交于一点，且相邻切线间的角度是相等的。

4A series of factor such as the difference about the centre of figure and the shear centre, curvature radius, central angle is discussed.

4对曲线梁中的剪、形心位置的差异以及曲率半径、圆心角、预应力大小、摩阻损失等内力影响因素进行了分析。

There is a small action range in archery.Simple methods and analysis is inadequate,so the author,on the basis of testing the archery athletes in national team with the Qualisisy infrared photoelectric testing system,Footscan sole pressure testing system,Noraxon myoelectricity remote testing system, etc,analyzes comprehensively the action technique of the athletes in national team from the posture,body motion characteristics,body posture equilibrium and stability,distribution of centre sole pressure, myoelectricity characteristics,etc,with the methods of relative software and data statistics.The conclusions and the suggestions are as follows:Conclusion:Firstly,the communality of posture angle,muscle strength,the activation order of main muscle during raising the bow, raising the bow and the timing of the raising could be used as the evaluation index of technique action in archery;Secondly,the length of the time needed in the different periods couldn\'t be used as technique evaluation index since it has no relation with the result.But the time of raising and pulling back the row is relatively fixed,and the time has a positive relation with the archery achievement of the national team in China.Thirdly,the central index of the sole pressure could be used as the reference criterion of selecting athletes and forecasting achievement.During playing archery,the interrelation between the central index of the sole pressure and the achievement is different individually and in different periods.Fourthly,there is low stability of the archery athletes in the front and back direction during the action, caused by the athletes\' posture disequilibrium of dorsal abdominal muscle and non-professional sport shoes..Fifthly,kinematics and electromyography shows that the people on archery in China haven\'t taken the raising and pulling back the row seriously.

射箭的肢体动作幅度小，简单的手段和分析不能满足其需要，笔者结合各种运动生物力学仪器优点及射箭项目的特性，选用Qualisisy红外光点测试系统、Footscan足底压力测试系统、Noraxon肌电遥测系统等对国家队射箭队运动员进行多方位的测试，运用相关软件及数理统计方法，对运动员的射箭动作技术，从射箭动作的姿态构架、肢体运动特点，身体姿态平衡稳定性、足底压力中心分布、肌电特性等进行全面分析，结论及建议如下：结论：第一，姿态角、肌肉用力激活程度、举弓阶段主要用力肌肉激活顺序、举弓、开弓时间等的一致性可作为射箭技术动作评价指标；第二，各动作阶段所用时间的长短不能作为技术评价指标，但举、开弓的时间相对较固定，开举弓时间比与中国国家队射箭成绩正弱相关达到显著性；第三，闭眼状态下足底压力中心单位面积轨迹长与144支箭最好成绩正相关达到显著性，可作为身体素质、选材及成绩预测的参考依据；实射时身体平衡的足底压力中心指标与成绩的相关程度具有个体性差异、阶段性差异；第四，射箭运动员实射时身体在前后方向上的稳定性较差，这与运动员的站立姿态、腹背肌力量的不匹配以及射箭没有专业运动鞋有关；第五，运动学及肌电学都表明中国射箭训练对举弓、开弓阶段的重视不够，背部肌肉用力特征不明显，撒放技术合理性不高。

First of all, the paper gave a briefing on the development of white LED and the problems need to addressed of RGB LED mixed white lighting; Then established colors distributed computing model of the RGB LED white lighting module; Final designed a number of different geometric structure of the RGB LED light source module, by changing angles (interior angle or the angle Centre) of the geometry and the LED colors with different priorities, programmed by using of Matlab software, simulated the color distribution correspond to such light source models.

首先，本文简要介绍了白光LED的发展现状及RGB LED混合白光需要解决的问题；其次建立了RGB LED的颜色分布计算模型；最后设计了几种不同几何结构排列的RGB LED光源模块，通过改变几何结构中角度、不同颜色LED的排列次序，利用Matlab软件编程，模拟以及仿真得到这些光源模型相应的光源颜色分布，并评价其颜色均匀性，进而得到最佳几何排列结构的RGB LED光源模块。

Position the nail file at a 45-degree angle under the nail, and file the nails from the left hand corner to the centre of the nail for a few long gentle strokes.

将锉刀以45度角放置于指甲下方，从指甲的左边慢慢磨到中间，如有必要，先把指甲剪断一点再磨。

Position thenail file at a 45-degree angle under the nail, and file the nailsfrom the left hand corner to the centre of the nail for a few longgentle strokes.

将锉刀以45度角放置于指甲下方，从指甲的左边慢慢磨到中间，如有必要，先把指甲剪断一点再磨。

. As a result, the oil film character of tilting pad would be changed into that of the finite arc cylindrical bush, with the bearing centre , the axle journal centre , the eccentricity and the angle of displacement .

假定开始时轴颈是没有运动的，如图1所示，瓦块圆弧中心、轴颈中心以及瓦块支点处于同一直线上，轴颈中心和瓦块中心间距离定义为原始偏心。

The supposed advantage was that any observer with a decimal chronometer and a view of the sun's height above the horizon would then know instantly where on the planet he was. With 100 decimal degrees (or "gons" as they became known) to a right-angle, and the distance from the pole to the equator being almost exactly 10,000 kilometres, 1 km along the surface subtends an angle of one centigon (a hundredth of a decimal degree) at the centre of the Earth.

人们认为这种表的优势在于：任何人只要有这样一块十进制表，再能看到地平线以上太阳的高度，就会立刻知道他在地球上的位置。100个十进制度（更为流行的称法叫作&百分度&）就是一个直角，从极点到赤道的距离几乎就是10000公里；这两点就使得地球表面的一公里的地心夹角恰巧是1centigon （即1百分度的百分之一）。

While the crank's angle sensor araise a arriving of signal of top dead centre, the piston is up to the top dead centre.

当曲轴角度传感器产生上止点信号的时候，发动机的活塞应该正好到达上止点的位置。

The database consists of nodimensional data of load carring capacities, maximum pressures and their positions, flow factors, and power loss factors by solving full 2D Reynolds equation including oil feed features of 360°, 180°partial groove, and single oil hole, corresponding to a series of power law index, length/diameter, groove width/length, hole diameter/length, hole diameter/bearing diameter, eccentricity, angle between the attitude angle line and centre line of oil groove/hole, rotary, squezze, and oil feed pressure factors.

数据库中的数据通过求解全二维Reynolds方程和热平衡方程获得。数据库由对应于360°全油槽，180°半油槽和单孔的三类轴承的一系列的幂率指数，宽径比、槽宽／轴瓦宽、油孔直径／轴瓦宽、油孔直径／轴承直径、偏心率、偏位线与油槽中心线之间的夹角、挤压因子、旋转因子、进油压力因子的一系列的轴承无量纲的特性参数组成：油膜承载力、最大油膜压力及位置、流量系数和消耗功系数。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。