If you look at this point where the hyperbola and the circle touch each other, first of all, I don't know which circle I am going to look at.
来看一下这一点，这里双曲线和圆刚好接触的地方，首先，我不知道我要看的是圆上面的哪一点。
The filled circle represents the starting point of the activity diagram, effectively a placeholder, and the filled circle with a border represents the ending point.
实心圆表示活动图的起点，实际上是一个占位符，带边框的实心圆表示终点。
As an example, we'll write a function that takes two points, the center of the circle and a point on the perimeter, and computes the area of the circle.
下面我们写一个函数作为例子，这个函数需要两个点，一个是圆心，一个是圆周上面的点，函数要用来计算这个圆的面积。
Life is a circle, some people did not take a lifetime to draw out the fate of the circle, in fact, each point on the circle has a soaring tangents.
人生是个圆，有的人走了一辈子也没有走出命运画出的圆圈，其实，圆上的每一个点都有一条腾飞的切线。
In a radial engine all the cylinders are set in a circle and all point toward the center of the circle.
在径向式发动机里，所有的气缸都布置在一个圆圈里，而且都指向圆心。
Life is a circle, some people walk all his life did not make fate draw a circle, each point on the circle have a tangent to take-off.
人生是个圆，有的人走了一辈子也没有走出命运画出的圆圈，圆上的每一个点都有一条腾飞的切线。
Based on the synthesis theory concerning the mixed point straight-line four-bar linkage in the special condition, a research method with the circle center and circle point as parameters is proposed.
对在特殊条件下混合点直线四杆机构的综合进行了研究，以圆心、圆点坐标为研究混合点直线四杆机构的参数，推导出一般条件下的综合公式并用实例验证了公式的正确性。
Based on the synthesis theory concerning the mixed point straight-line four-bar linkage in the special condition, a research method with the circle center and circle point as parameters is proposed.
对在特殊条件下混合点直线四杆机构的综合进行了研究，以圆心、圆点坐标为研究混合点直线四杆机构的参数，推导出一般条件下的综合公式并用实例验证了公式的正确性。
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