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sltmac(½ð±Ò+1): 2011-11-29 08:53:38
ã¶®´óÈË(½ð±Ò+10, ·ÒëEPI+1): ¶àл 2011-12-06 10:32:01
sltmac(½ð±Ò+1): 2011-11-29 08:53:38
ã¶®´óÈË(½ð±Ò+10, ·ÒëEPI+1): ¶àл 2011-12-06 10:32:01
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The surface¡¯s shape of its top and bottom is dependant on the basic duality of its shell index (k). When k = odd number, they are extensions of the triangle shape with only threefold symmetry. While k = even, they are extensions of the hexagon shape with sixfold symmetry. ½ö¹©²Î¿¼°¢ |

2Â¥2011-11-28 19:46:13














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