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¸÷λ¸ßÊÖÇë°ïÃ¦ÍÆ¼öÒ»¸öÊʺÏÎÒ¼ÆËãµÄÊýѧÈí¼þ£º ÎÒÐèÒª½â¾öµÄÎÊÌâÈçÏ£º mathematicaÖеÄÖ¸ÁîÈçÏ£º Solve[{n*nAr1 - nAr*(nAr + nFe + 2*n)*3.32*(10^-7)*(t^(5/2))* Exp[-18.27*(10^4)/t] == 0, n*nAr2 - nAr*(nAr + nFe + 2*n)*3.32*(10^-7)*(t^(5/2))* Exp[-32.035*(10^4)/t] == 0, n*nFe1 - nFe*(nAr + nFe + 2*n)*3.32*(10^-7)*(t^(5/2))* Exp[-9.16*(10^4)/t] == 0, n*nFe2 - nFe*(nAr + nFe + 2*n)*3.32*(10^-7)*(t^(5/2))* Exp[-18.77*(10^4)/t] == 0, n + nAr + nFe + nAr1 + nFe1 + nAr2 + nFe2 - 0.73*(10^28)/t == 0, n == nAr1 + nFe1 + 2*nAr2 + 2*nFe2, (nAr + nAr1 + nAr2)/(nFe + nFe1 + nFe2) == 0.9}, {n, nAr, nFe, nAr1, nFe1, nAr2, nFe2}] ¾ÍÊÇÓÐ7¸ö·½³Ì£¬8¸öδ֪Êý£¬ÒªÇó½âµÄδ֪Êý¾ùΪtµÄº¯Êý£¬·½³ÌÖÐÓÐ2´ÎÏָÊýÏ¿´ÆðÀ´ºÜ¸´ÔÓ£¬ ²»ÖªµÀÓÃÄÄÖÖÈí¼þ±È½ÏºÃ£¬Çë¸÷λ¸ßÊÖ°ïæ£¬Ð»Ð»´ó¼Ò£¡ |
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