... 对称集中 symmetry concentration 对称方向 symmetry direction 对称要素 symmetry elements ...
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Rotational symmetry (or radial symmetry) is when an object is rotated in a certain direction around a point.
旋转对称(或称放射对称)是指某一物体绕着某一点在某一方向上做转动。
Reflection symmetry can take on any direction: vertical, diagonal, and anything in between.
反射对称可以是任意方向的，垂直的，对角线的，或是界于这两者之间的任一角度。
Nor do the laws of nature change depending on the direction in which you look (rotational symmetry).
定律也不会因为你观察的方向不同而改变(这是转动对称性，Rotational Symmetry)。
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