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line tangent

网络直线相切

line tangent

line tangent

line tangent

直线相切

7. 单击“直线相切”(Line Tangent) ，创建切线。 8. 单击“修剪/删除线段”(Trim/Delete Segment) ，修剪圆形图元。

1

If you do not hold on tightly to one of the painted horses , you will be flung in a straight line tangent to the merry-go-round' s circle.

假如没紧抱其中一匹木马，你必定顺著旋转木马圆盘的切线方向被直直地甩出去。

2

A straight line tangent to a curve

与曲线相切的直线

3

a line tangent to a circle

同圆周相切的线

4

Draw a line tangent from a curve

画一条线与另一曲线相切

5

Draw a line tangent to two curves

画一条线与另两条曲线相切

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