Do I need to draw a tangent line of this circle?

我需要画出这个圆的一条切线吗？

The steady automatic tangent line function has improved working efficiency.

稳定的自动切线功能提高了工作效率。

The concrete expression of the unit tangent line stiffness matrix is given.

讨论了桥梁结构分析中常用单元切线刚度矩阵的具体表达形式。

Show me a place where that's not true where the tangent line will be really bad.

请给我个这个原则不对的例子,也就是说切线没起到相应作用的例子。

计算机科学及编程导论课程节选 : 麻省理工公开课

That means that you want to pick, ultimately, a point on this-- this line is tangent to the efficient portfolio frontier with all the other assets in it.

那意味着你会最终会在这上面选一个点-,这条直线是与有效边界相切的,后者包含了所有的资产组合。

金融市场课程节选 : 耶鲁公开课

I don't know how well you can see it in this figure here, is the slope of a straight line connecting these two points, and as the points come closer and closer, the straight line would become tangent to the curve.

我不清楚你们对于这个图像的理解,这条连接两点的斜线,随着两点距离逐渐缩小,两点连线会变成曲线的切线

基础物理课程节选 : 耶鲁公开课