It is the season for viewing Polar Mesospheric Clouds, and with our high beta-angle we were able to capture this thin layer of noctilucent clouds at sunset (6-25-2010).

到了观看极地中气层云的时候，在太空中使用高β角度，我们能捕捉到日落时刻这层薄薄的夜光云。

youdao

The angles refer to the polar view angle, i. e. the angle measured from the vertical.

角涉及到极面观的角，例如垂直物上测量的角。

youdao

The polar equation of non-circular gear pitch curve, calculation method of center distance, formula of pitch curve length, primary circle radius and pressure Angle is given.

给出了非圆齿轮的节曲线极坐标方程，两齿轮中心距的计算方法，节曲线长度、基础圆半径和压力角的计算公式。

youdao

If it's in polar form I passed in a radius and angle and I'll compute what the x- and y- value is.

以及半径和角度,但是现在是这样的,不管我是以哪种形式。

麻省理工公开课 - 计算机科学及编程导论课程节选