So this is a circle, and it comes to a halt, let's say here at point C.
这是一个圈，它会在比如说，点C停下来。
R So if C is the circle, R is the disk of radius A.
就是C所包围的区域。，Well，，R，is，the，region，enclosed，by，C。,如果C是一个圆，R就是半径为a的圆盘。
They are just flowing along the circle around and around so the flux will be zero. F now is tangent to c.
只是沿着曲线流动，所以通量为零，F与C相切。
Ben nand Paul met on set of the O. C., while Shelley and Phoebe starred on the Secret Circle together.
本和保罗是在《橘子郡男孩》片场认识的，而雪莱和菲比则一起出演了《秘社》。
C is always smiling and very eager to learn. When asked a question at circle time he always has the best answers.
总是可以看到C的笑脸，他非常渴望学习，对于晨圈时间老师的提问，他总是能给出最佳的答案。
This group of petroglyphs in the Alta Fjord, near the Arctic Circle, bears the traces of a settlement dating from c. 4200 to 500 B. C.
临近北极圈阿尔塔海湾的这组岩画是公元前4200年至公元前500年人类居住遗迹的见证。
And in the 1940s, Arthur. C. Clarke predicted that communication satellites would circle the globe by the year 2000. These arrived 30 years before they were due.
十九世纪小说家科拉克预言，到2000年才能实现卫星通讯，结果提前30年，这一设想就实现了。
Ben and Paul met on set of the O. C., while Shelley and Phoebe starred on the Secret Circle together.
本和保罗是在《橘子郡男孩》片场意识的，而雪莱和菲比则一起出演了《秘社》。
Ben and Paul met on set of the O. C., while Shelley and Phoebe starred on the Secret Circle together.
本和保罗是在《橘子郡男孩》片场意识的，而雪莱和菲比则一起出演了《秘社》。
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