常見例句雙語例句The isotopic fractionation under microbial actions belongs to the kinetic isotopic fractionation, which results in the enrichment of heavier isotopes in .通過熱模擬實(shí)騐，系統(tǒng)研究了單質(zhì)硫在有機(jī)質(zhì)生成甲烷過程中對其碳同位素分餾的影響。 返回 isotopic enrichment