通常会选择圆形或近似的圆形。

Generally, a circular or nearly circular shape is chosen.

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该装置可以装在任何垂直或近似垂直的平面上。

The gadget can be attached to any vertical or near vertical surface.

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双方在许多重大国际和地区问题上，有着相同或近似的立场。

The two sides share identical or similar positions on many important international and regional issues.

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Because you can come up with an infinite number of values but if you have a finite amount of space and certainly a computer has a finite amount of disk space or RAM, you have to make approximations.

你可能会碰到一些无限的值,如果你只有有限的空间,废话，电脑当然只有一个有限的磁盘空间,或RAM，我们得做一些近似处理。

哈佛公开课 - 计算机科学课程节选