isotopesn.同位素名词isotope的复数形式.isotopen.同位素isotope ratio tracer同位素比示踪法isotope geochemistry同位素地球化学isotope hydrogeology同位素水文地质isotope label method同位素标记isotope scintigraphy同位素闪烁成像, 同位素闪烁摄影(术)Isotope substitution同位素替代isotope distribution同位素分布isotope stratigraphy同位素地层学isotope brain imaging脑同位素成像isotope cisternograph同位素脑池图

1. This spectral shift permits laser light to selectively excite molecules containing one isotope while leaving the molecules containing the other isotope undisturbed.
   这种谱线位移使我们能够利用激光有选择地激发含有某一同位素的分子，而含有其他同位素的分子则完全不受扰动。