adjective🔗Share四价锡的，正锡的 Containing tetravalent tin."The chemist labeled the container "Stannic Oxide" because it contained tin in its stannic, or tetravalent, oxidation state. "这位化学家给容器贴上“正锡氧化物”的标签，因为它含有处于正锡或四价氧化态的锡。chemistrymaterialsubstancecompoundtechnicalscienceChat with AIVocabulary GamePractice Reading
