The second epiphany was that the extracted gas had a significantly different isotopic makeup from what is usually produced in nuclear reactors. 第二項大發(fā)現是，萃取出來(lái)的氣體，同位素組成與一般核反應器中所產(chǎn)生的大不相同。
The Anqing copper deposit has a complicated sulfur isotope composition ,which can not be explained by the variations of a single sulfur source or the physico-chemical conditions. 安徽安慶銅礦床的硫同位素組成復雜，不能用單一硫源或物理化學(xué)條件的變化來(lái)解釋。
