绿色螺旋线由内部每一个正方形和四分之一圆相切线构成，而红色的螺旋线是黄金螺旋线，它是对数螺旋线的一种特殊类型。
The green spiral is made from quarter-circles tangent to the interior of each square, while the red spiral is a Golden spiral, a special type of logarithmic spiral.
用最明显的图形来描述这个过渡的特性就是：当在两个圆之间绘制一条直线，直线与每个圆只有一个交点时，那么这条线就是两个圆的切线。
The quality of this transition is best visualized by a straight line drawn between two circles: the line's only point of contact with each circle is tangential.
我需要画出这个圆的一条切线吗？
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。
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.
介绍了测设和检验圆曲线的两种新方法：任意角夹角法和任意切线长支距法。
This paper presents two kinds of new methods for setting out circular curve: free angle and tangent length method.
为了解过去，圆切线社员还走访了三位长辈-韩山元、英培安和许黛安。
Tangent also interviewed three elders: Mr Han Tan Juan, Mr Yeng Pway Ngon , and Professor Koh Tai Ann.
在线路施工测量中，圆曲线测设方法有很多，通常采用偏角法或切线支距法。
There are many methods to measure the circular curved line in circuitry construction survey. Angle offset method and tangent offset method are usually used.
因为回转体在特殊情况下投影为圆，此类问题就转化为求圆的半径、圆心及切线了。
On special conditions, their projections are circular, these problems turn into the solutions of the circle radius center and tangent.
讨论了圆的切线及两圆内外公切线的一般求法及步骤。
The general ways and procedures of working out internal and external co-tangents of circles are discussed.
圆切线是一个新加坡公民社会团体，以汉语进行讨论，及鼓励社会不同角落之间的跨文化交流。
The Tangent is a Singaporean civil society group which discusses issues mainly in the Chinese language and promotes cross-cultural communication among different segments of society.
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。
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。
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.
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