isotopic ratio [環(huán)境科學(xué)技術(shù)]同位素比值[物理學(xué)]同位素比[機械工程]同位素比isotopic peak [物理學(xué)]同位素峰isotopic hydrogeology [地球科學(xué)]同位素水文地質(zhì)學(xué)isotopic geological age 同位素地質(zhì)年齡isotopic equilibrium [核] 同位素平衡isotopic enrichment [能源科學(xué)技術(shù)]同位素濃縮[物理學(xué)]同位素濃化同位素濃縮同位素富集[化學(xué)]同位素濃縮同位素富集isotopic element [核] 同位元素；同位素isotopic effect [物理學(xué)]同位素傚應(yīng)[化學(xué)]同位素傚應(yīng)isotopic dilution method [地球科學(xué)]同位素稀釋法[物理學(xué)]同位素稀釋法isotopic dilution mass spectrometry [化學(xué)]同位素稀釋質(zhì)譜法[生物學(xué)]同位素稀釋質(zhì)譜法isotopic dilution analysis [能源科學(xué)技術(shù)]同位素稀釋分析isotopic dilution [核] 同位素稀釋isotopic content [地球科學(xué)]同位素含量isotopic chronometry 同位素計時isotopic chronology [地球科學(xué)]同位素年代學(xué)同位素測年isotopic carrier [核] 同位素載躰isotopic cardiac pacemaker [毉葯科學(xué)]同位素心髒心搏器isotopic carbon ratio [生物學(xué)]穩(wěn)定碳同位素比isotopic age determination [地球科學(xué)]同位素地質(zhì)年齡測定同位素年代測定用同位素的時代測定isotopic abundance ratio 同位素豐度比