创建表面使用扫描第2轨与相切选项。为了实现切线选项，您将必须建设中的表面部分。

Create the surface using sweep 2 rails with the tangency option on. To achieve tangent option you will have to build the surface in parts.

youdao

他关了与法院广场相切的那条街上的办公室门，走过了两条街回到家。

He closed his office on the street tangential to the courthouse square and walked the two blocks to his house..

《柯林斯英汉双解大词典》

例如，在某些情况下，如果已知向量场与曲线相切，或者内积是一个常数等等，那么结果将会很简单。

And, in some cases, for example, if you know that the vector field is tangent to the curve or if a dot product is constant or things like that then that might actually give you a very easy answer.

youdao

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。

耶鲁公开课 - 金融市场课程节选

Tangent means that it has the same slope, it just touches the efficient portfolio frontier for risky assets at one point, and the slope of the efficient portfolio frontier, including the riskless asset, is a straight line that goes through the tangency point, here.

相切意味着斜率相同，它与包含风险资产的有效边界,交与一点，而包含无风险资产的，有效边界，则是一条过切点的直线，切点在这里。

耶鲁公开课 - 金融市场课程节选