Suppose I set the angle of the ladder exactly at the critical point.

假设我使,梯子正好,处于这个临界角。

youdao

Well, at point P, the velocity vector QP is perpendicular to the line QP, 1 so the sine of that angle is one.

点P，速度向量,垂直于直线，所以该角的正弦值为。

youdao

The angle of alpha will then be tangential to this point.

α角将,与该点相切。

youdao

But blood drops with long tails can tell a great deal about the direction, speed and angle of the blood's starting point.

VOA: special.2010.05.05

self y Notice what I also do here, I create self dot y, give it a value, and then, oh cool, I can also set up what's the radius and angle for this point, by just doing a little bit of work.

我创建了，然后给它赋值，然后，噢太酷了，通过做一点额外的工作,就可以得到点的半径和角度了，好，实际上如果。

麻省理工公开课 - 计算机科学及编程导论课程节选

In that case point p 1 doesn't correspond to this point, it actually corresponds to the point of radius 2 and angle 1, which is about here.

基本上也就是说这是第一个点1,这是第二个点，把它们的值加到一起,然后我就得到了目标点，好，这听起来挺不错的。

麻省理工公开课 - 计算机科学及编程导论课程节选

In those with diabetes, the line joined a second line at a wider angle and at a point 1cm higher in the palm.

BBC: Insulin

By studying these clouds from every angle and at every point in their life cycle, researchers hope to learn more about how these storms, which can drive air more than 13km above the Earth's surface, will contribute to climate change in a warming environment.

ECONOMIST: Climatology

No one cares to consider the possibility or challenge the conditions and there are no clear signs that a turning point of dramatic angle is about to be reached.

FORBES: When Does Optimism Pay Out The Most?