词汇	periodic time bill
释义	periodic time bill 定期汇票
随便看	isotopic age determination isotopic ages isotopical deposit isotopically Isotopically-Coded Affinity Tagging isotopically deficient isotopically enriched isotopically-enriched isotopically enriched ion isotopically-enricheds isotopically exchangeable phosphat isotopically exchangeable phosphate isotopically labeled isotopically labeled compound isotopically labeled material Isotopically labelled internal standard isotopically labelled reagent isotopically modified isotopically modified compound isotopically pure isotopically selective excitation of atoms isotopically substituted isotopically substituted compound isotopically tagged isotopically unmodified