neftning fizikaviy-kimyoviy xossalari
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1694419181.doc 20 4 g r 20 40 r t 4 ( ) 20 - t g r 20 40 g ( ) 20 15 , 2 ä n - const n i r = = sin sin const n r ä = - = r 1 1 const n n r ä ä = + - = r 1 * 2 1 2 2 2 ( ) ( ) v n m n r ä ä m 1 * 1 1 - = - = r v n n ì n n r ä ä ä ä m 2 1 * 2 1 2 2 2 2 2 + - = + - = r 23 1 2 2 n …
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