圆的

The abscissa at the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system, the arc being of length x and measured counterclockwise from the point(1,0) if x is positive or clockwise if x is negative.

余弦以笛卡儿坐标系原点为圆心的单位圆的圆弦端点的横坐标，弧的长度为x，如果x为正，弧的长度则从（1，0）点按逆时针方向算起，若x为负，则按顺时针方向从（1，0）点算起

The abscissa at the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system,the arc being of length x and measured counter clockwise from the point(1,0)if x is positive or clockwise if x is negative.

余弦以笛卡儿坐标系原点为圆心的单位圆的圆弦端点的横坐标，弧的长度为x，如果x为正，弧的长度则从(1，0)点按逆时针方向算起，若x为负，则按顺时针方向从(1，0)点算起

Expanding from the center of the circle get a maximum boundary in the limitation of 80㎡get a circle with radius 5m.

从这个圆的中心扩张，在80平米的限制之下得到一个最大化的边界：半径为5米的圆。

Firstly , the following proofs are made by means of homothet-ic transformation : 1 the centre of a nine-point circle is at the midpoint of ligature of its curcumcentre andorthocentre; 2 the radius of nine-point circle is equal to half of the radius of its curcumcircle.

本文给出一个简单的证法，先用位似变换的方法证明九点圆的圆心在外心和垂心连线段的中点，九点圆的半径等于外接圆半径的一半。

And the mouth of it within the chapiter and above was a cubit: but the mouth thereof was round after the work of the base, a cubit and an half: and also upon the mouth of it were gravings with their borders, foursquare, not round.

7：31 小座高一肘，口是圆的，彷佛座的样式，径一肘半，在口上有雕工，心子是方的，不是圆的。

A algorithm of searching and computing two adjacent polygons' closest distance based on restricted circle has been presented in this paper, that can be fitted for the situations of undistinguished shapes and location relationships of the two adjacent polygons.

本文提出了基于约束圆寻找并计算任意两个实体多边形之间的最近距离方法，并给出了约束圆的特征。这种方法适用于不用区分实体多边形的形状与位置的各种情况。

The system utilized four laser scanners along lengthwise direction of the log. Data are obtained in every ten degrees when log is turning, in each cross section, 36 data are obtained. Then the data obtained were processed and an outline of the cross section of the log was developed on computer screen. Afterwards, the largest inscribed circles for log cross sections were determined according to the principle that three points can determine a circle. Secondly, the points located on the cross sections were linked up along some log generative in order to simulate the three-dimension log outline. At last the largest right circular cylinder were optimized and the optimum turning center was determined by means of projective theory.

具体作法是：在木段长度方向均匀设置四个激光传感器，当木段旋转时，起动激光传感器，进行数据采集，每隔10~0扫描一个点，在各横断面圆周上共采集36个点的数据，由计算机处理采集的数据，并绘制出原木横断面的几何图形，再根据三点定圆的原理，确定出最大内接圆；其次，模拟原木三维廓形，即将原木相邻横断面上离散点沿着母线方向连线，由计算机分析处理，绘制原木三维廓形；最后，采用投影法，优化出原木最大内接圆柱体，并确定原木回转中心线。

The mechanisms in daily life, including the scissors-style crank-linked expansion and contraction gate, an expanding and contracting clothes rack, a sawhorse work table, etc., feature linear expansion and contraction.

日常生活中我们见到的剪式连杆结构的伸缩门、伸缩衣架和剪式升降工作台等可以实现直线伸缩，按此原理将剪式连杆封闭咸圆形，则可实现"圆"的伸缩；而将多个"圆"通过交叉组合成球形，从而实现"球"的伸缩。

Accurately speaking, today, 11:13, is the roundest moon time in Beijing and the Eastern Hemisphere is a pity that people do not see the roundest moon of the.

准确来讲，今天中午11时13分，是月亮最圆的时刻，可惜的是北京及东半球的人们看不到最圆的月亮了。

To present a manufacturing method of semiconductor device using adhesive sheet for wafer processing or adhesive sheet with semiconductor wafer, and a semiconductor device obtained in this manufacturing method.

进而本发明还提供使用了晶圆加工用粘合片或带半导体晶圆的粘合片的半导体元件的制造方法、以及通过该制造方法得到的半导体元件。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了