为了显示属于软件包的分类器属于，从每个分类器画一条线到里面有加号的圆周，这些圆周粘附在软件包之上(图9)。

To show what classifiers belong to the package, a line is drawn from each classifier to a circle that has a plus sign inside the circle attached to the package (Figure 9).

youdao

我们发现月球环绕地球的轨道总是圆周形--或很近似圆周形。 每一个月，或者更确切些说是每27又1/3天就环绕地球转一圈。

We find that it is traveling in a circle - or very nearly a circle - round the earth, going completely round once a month, or, more exactly, once very 27 1/3 days.

youdao

我想看一下，当你在圆周底部，和在圆周顶部会成什么样子。

I want to look at you when you are at the bottom of your circle and when you are at the very top of that circle.

youdao

At any instant, your motion, if it follows any curve, locally can be approximated as being part of some circle.

在任何时候,如果做曲线运动,都可以近似地认为是圆周的一部分

耶鲁公开课 - 基础物理课程节选

I have shown you yesterday that the speed of the particle as it goes around the circle is this .

我昨天讲过,质点做圆周运动的速率等于这个

耶鲁公开课 - 基础物理课程节选

Different understandings of what that piece means gives you different values, and that's a bit of a problem.

应该是半径为1角度为,弧度为2比圆周率的一半，稍微多一点。

麻省理工公开课 - 计算机科学及编程导论课程节选