The work including:(1) This paper introduces a new airport detection approach based on many regular straight line features in airports.

从机场检测着手，针对实际情况，采用了一种新的基于直线特征的机场检测方法。

youdao

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

The court heard that other drivers, including two driving behind Evans, saw Mr Mort cycling in a straight line.

BBC: Alan Mort