center of a circle

The earth and the ionosphere of the earth-ionosphere wave guide have the same center of a circle.

我们把地-电离层波导中的电离层和地面理想化为具有相同圆心的球面。

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While Apple was waiting for its patent to be issued, Samsung unveiled phones that opened when a user touched the center of a circle on the screen, and dragged a finger to any point outside the circle.

就在苹果公司等待专利发布的时候，三星发布了自己的手机，用户点触屏幕中心的圆圈，然后向圆圈以外的任何一点拖滑手指就可以实现解锁。

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For circle failure surface, this paper uses GA's theory to search the center of a circle and the radius of it separately, and based on simple Bishop method to compute the safety factor ( F), and compiled program successfully.

针对圆弧形滑动面法，采用嵌套式的遗传算法分别对滑动圆弧的圆心、半径进行遗传进化搜索，基于简化Bishop原理进行稳定系数的计算，成功的编制了程序。

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The center position of a circle is obtained by center of gravity of region method, three point method and the least square fitting.

本系统采用区域重心法，三点法和最小二乘拟合法对圆心位置进行检测。

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A straight line from the center to the perimeter of a circle ( or from the center to the surface of a sphere).

从圆的中心到周界的直线（或从球体的中心到表面）。

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With the Lagrange multiplier method, the minimum distance of the center of a circle and a quadric surface was provided and the tangency condition of curve and surface was given.

利用拉格朗日乘子法求解二次曲线和二次曲面之间的最小距离，给出了曲线与曲面相切的条件。

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Find the center of a circle with the circumference given.

[给定一圆周以圆规作图找出圆心].

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A simple method to deduce the nonsymmetric basic type of curve is presented. With geodetic coordinate of the center of a circle, a coordinate calculation formula of the nonsymmetric basic type of curve at any point is deduced.

介绍了一种推导非对称基本型曲线的简单方法，并利用圆心点大地坐标，推导出非对称基本型曲线任意点的坐标计算公式。

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A straight line connecting the center of a circle with two points on its perimeter ( or the center of a sphere with two points on its surface).

两个尖端在圆的周界上并且连接中心的直线（或尖端在球体表面上连接球中心）。

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Any line drawn through the center of a circle is normal to the circumference.

通过圆心画的任何直线均垂直于圆周线.

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Since there are distortions existing in the annulus images which are collected, the effective conformation on the center of a circle and radial direction will be the important premise for expanding and correcting of the images.

采集到的环带图像存在畸变，它的圆心和半径方向的有效确定是进行图像展开与矫正的重要前提。

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The unit of plane angle adopted under the System International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius ( approximately 57.295 degrees).

国际单位制采用的平面角单位；长度等于半径的弧所对的圆心角。

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A diameter passes through the center of a circle.

直径从圆心穿过.

《简明英汉词典》

This article detailedly discusses the principle of obtaining the center of a circle ′ s coordinate and the realization course of directional barrel ′ s parallel degree image measurement system based on the least square method.

详细论述了基于最小二乘法求圆心坐标的原理和在定向管平行度图像测量系统中的实现过程。

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Potassium and phosphorus, showed significant positive correlation. ( 3) in the gradient level, the degree of aging oasis soil and soil fertility level of villages to cities and towns as the center of a concentric circle.

在水平梯度下，绿洲土壤熟化程度与土壤肥力高低以村落城镇为中心呈同心圆分布。

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But arc interpolation can be carried out on the condition that the center coordinates of a circle are known in CNC.

但是，在数控系统内部必须知道圆心的坐标，才能进行圆弧插补。

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Every man is the center of a circle whose circumference he cannot pass.

每个人都是生活在他自己的不能越过的圈子的中心。

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All the participants huddle up in the center of a circle and let their turtles loose. The creatures wander around aimlessly until one eventually makes it out of the circle and is declared the winner.

参赛者聚集在画好的圆圈里然后在中心处放下各自的乌龟，乌龟们漫无目的地游荡，直到有一只爬出圈子，这便是冠军。

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