剑桥词典a scientific method of finding what separate chemicals are in a substance by passing it through a material such as paper 色谱分析法(一种识别混合物中所含成分的科学方法,原理是让液态或气态混合物流过某一媒介(如纸张),当中的不同成分会以不同速度流过该物料) 返回 chromatography