短語(yǔ)詞組短語(yǔ)relative isotopic abundance 同位素相對(duì)分佈量;同位素相對(duì)豐度relative e abundance 元素豐度relative isotope abundance determination 相對(duì)同位素豐度測(cè)量Relative Factor Abundance 相對(duì)要素充裕度relative e abundance of methane 相對(duì)瓦斯湧出量relative abundance of species 物種相對(duì)多度relative e isotopic abundance 同位素相對(duì)豐度relative abundance rank 相對(duì)多度排列relative abundance of ions 離子相對(duì)豐度 返回 relative abundance