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zaq123321
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Zeroth order, scalar. First order, vector. Second order, matrix. Third order, add another index for matrix, etc. indexes can be superscript or subscript. Subscript tensor transformation with coordinates. Variant, covariant tenders thus defined. Etc [ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ] |

4Â¥2015-06-04 10:16:24
feixiaolin
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2Â¥2015-06-04 07:29:19
fujsjssjsj
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3Â¥2015-06-04 10:06:04
mygt_hit
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5Â¥2015-06-05 14:30:20













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