A]2.303\r60[A]n0.132x1.0\rCo[g-------=------------------=0.05732\r[A]2.303\r\r=1.14\r[A]\r]1.67\r[A]=y^=L46(MBq)\r591JA]0.693\rFelgWx365\r45x2.303EvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\r=276\r[A]9S'U0=6.05XlO3(Bq)\r276\r27.)*+??,-./01`-./0234567,\r]g\r[A]2.3034/2\r 0:;=<=>\r?@235u1.00gC238u137.7gEFGHIJK4.5X1()9aNOPQRSTU2V\rWX0.693\rIs------------x4.5xIO=1.923\r1.002.303x7.04xlO8\r[235U]=83.8(g)\r[238Z]\r0.693x4.5x109=0.3029\r1g9\r137.72.303x4.47xlO\r[238U]=276.6(g)\r\K4.5X109aNO[23SU][238U]=83.8276.6=13.3\rP^_@235U1.00gC238U137.7gEFGH,abKcdeUfgV^[U]\ro\r[t/]n0.693\rU1g----=----------------TXt\r1.002.303x7.04xlO8\rjk.0.693\r1gxt\r137.72.303x4.47xlO9\rl-mn\r0.693I1\r1g137.7=-----XtX(-----------------------------)\r2.3037.04xlO84.47xlO9\rt=5.9X109(a)
全文预览