frontier point

基本解释

Risk evaluation is one of the most important parts of the engineering, and is also a frontier and hot point in geological hazard reduction fields.
风险评估是这系统工程中不可或缺的重中之重内容，也是新世纪地质灾害防灾减灾领域的前沿和热点。
France responded by rounding up thousands of migrants near the frontier—at one point even stopping a train from the Italian border town of Ventimiglia—and sending them back to Italy.
法国做出了回应：将成千上万的移民赶到了边界（甚至做到了这一步：截下了从意大利边境城市文蒂米利亚开来的火车）并且把他们遣回意大利。
Reconstructing 3D motion and structure based on optical flow becomes the hot point and frontier in the research of computer vision. It is divided into linear and unlinear algorithms.
由光流场重建三维运动和结构是计算机视觉研究中的热点和前沿，它分为线性算法和非线性算法。

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

Markowitz built a diversified portfolio model that assumed that the portfolio structure would be located on the frontier point that would yield maximum utility.
FORBES: Innovation In Investment Vehicles
Given the enormous obligations of many Ivy League endowments to fund general university operations, their portfolios were positioned on the wrong point of the efficient frontier.
FORBES: How The Harvard And Yale Endowment Models Changed To Avoid A Repeat Of 2009