圆心

The point in the middle of a circle is called the center of a circle.

把圆中心的一点叫做圆心，圆心一般用字母 O 表示。

Concise main shaft : Regarded sports meeting as the centre of a circle, next term as the centre of a circle with the graduation achievement last term, and then design second-class theme , weekly points of themes divided per month , let all classes carry on every activity and teaching under the simple main shaft , clear direction.

简明主轴：上学期以运动会为圆心、下学期以毕业成果为圆心，进而设计每月分的次主题、每周的分主题，让所有的班级在简单的主轴、清楚的方向下进行各项活动及教学。

Under the round icon state, move the cursor to the position of centre of a circle (according to the position value of the cursor, or the cursor is reached and turned into ' X ' shape while appointing one), can't show, move the cursor at the same time, will reveal the present and round radius in the parameter window springing, will draw the corresponding round (when far away from the centre of a circle in cursoring on the screen, the radius becomes large; When the cursor is close to the centre of a circle, the radius is diminished).

有关机械方面的翻译，谁会，帮我翻译一句8.3.3.1圆输入 A ：标定圆在圆图标状态下，将光标移至圆心位置（根据光标位置值，或光标到达指定点时变成'X'形），不能放，同时移动光标，在弹出的参数窗内将显示当前圆的半径，屏幕上绘出对应的圆（当光标远离圆心时，半径变大；当光标靠近圆心时，半径变小）。

Consider the circle that is tangent to the curve at and has the same curvature there. Its center will lie on the concave side of the curve. This circle is called the circle of curvature. Its radius is the radius of curvature, and

在点处的曲线的法线上，在凹的一侧取一点，使得，以为圆心，半径为的圆叫做曲线在点处的曲率圆，曲率圆的圆心叫做曲线在点处的曲率中心，曲率圆的半径叫做曲线在点处的曲率半径。

The method for the point sets selection of point Hough transform and the scan direction for image of searching the point sets were improved by using the geometrical characteristic of the concentric circles:The center of the concentric circles was obtained in the accumulative array firstly,radius was obtained by the mean of distance between the circle center and every edge points afterwards,both the circle center and the edge of the concentric circles were detected accordingly.

利用同心圆的几何特点对点Hough变换边缘点的点组选取方法和搜索点组的图像扫描方向进行了改进：首先由累加阵列确定同心圆的圆心，然后由圆心到各个有效边缘点距离的均值求出半径，从而检测出同心圆的圆心与边缘。

According to the fact that a round of all the points must be inscribed circle round, the black and white points of the edge image were extracted, and a twodimensional array accumulator was established.

根据圆上所有点的内切圆必经过圆中心的事实，提取黑白边缘图像来建立二维数组累加器，依照像素点分布扫描边缘图像，累加器计数，计算出圆心位置，对每个圆心进行半径累积，确定同心圆半径集。

The analysis on the test result shows that the temperature distribution in CFST members caused by solar radiation is nonlinear,and the nonlinear character is most evident when center point of concrete gets its lowest temperature. The temperature of the center point is affected by various directions, especially the strong potential. In the side exposed to the sun in the afternoon, apart from the center point, temperature varies laggardly when the point of concrete in the same series is more close to the center. But in the side not exposed to the sun in the afternoon, temperature varies laggardly when the point of concrete in the same series is more close to the center.

结果表明，日照作用下截面的温度场为非均匀场，混凝土中心的温度达到最小值时，截面温度场的非线性特性最明显，圆心点的温度受各个方向温度的共同作用，更多地受到强势方向的影响；下午时处在向阳面的各系列，同一系列上混凝土各点温度变化随直径缩小趋缓，越靠近圆心，温度变化越缓和，对外部环境的影响呈滞后现象越明显；而在下午时处在背阴面的各系列除圆心点外，同一系列上越靠近圆心的混凝土测点，温度变化越缓和。

Where the center of a radius is outside the drawing or interferes with another view, the radius dimension line may be foreshortened.

当半径尺寸线缩短，圆心点要用坐标尺度来确定，确定圆心的尺寸线也要缩短。

With minimizing the move distance as the optimization objective, the circular curve radius and circle center coordinate were then optimized, the transition curve length, the move distance of each measured points, the mileages and the coordinates of the feature points and so on were further computed.

首先利用坐标法计算各测点的坐标，再计算正矢，然后根据正矢的变化规律选定圆曲线上的测点，用最小二乘法拟合出既有线圆曲线的半径和圆心坐标，并以拨正量最小为优化目标，优化圆曲线半径及圆心，进而计算出缓和曲线的长度、各测点的拨正量、特征点的里程和坐标等。

Try to see the square perfectly; when you can do so draw a circle within the square; now place a point in the center of the circle; now draw the point toward you about 10 inches; now you have a cone on a square base; you will remember that your work was all in black; change it to white, to red, to yellow.

试著看清楚这个正方形；看清以后，在正方形中画一个圆；在圆心画一个点，然后把圆心的点向你自己的方向拉近10英吋。现在，你在一个正方形的底面上做成了一个圆锥；你应该能记住这个圆锥是黑色的；再把它变成红色、白色、黄色。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。