isotopesn.同位素名词isotope的复数形式.isotopen.同位素isotope renography肾同位素成像isotope-labelled同位素标记的isotope-doped Si同位素掺杂硅isotope build-up同位素积累isotope mass ratio同位素质量比isotope chronology同位素年代学isotope scintigram同位素闪烁图isotope enrichment同位素富集isotope incoherence同位素非相干性isotope loopography同位素肠曲显像(术)