اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
عَمُود اِسْتِشْرَاب:- a vertical glass tube used in column chromatography; a mixture is poured in the top and washed through a stationary substance where components of the mixture are adsorbed selectively to form colored bands (Arabic WordNet)