計(jì)算~~~~如圖~~~偶不會(huì)~~忘記了...謝謝~~

熱心網(wǎng)友

設(shè)所求為x，則有14x+15(1-x)=14.0037解這個(gè)方程，得：x=99.63%

熱心網(wǎng)友

設(shè)N14含量為X有:14X+15(1-X)=14.0037解得X=15-14.0037=0.9963所以N14含量為99.63%