adj.亚钴的,二价钴的;
例句:
Techno-Economic Evaluation on Cobaltous Acetate Production
醋酸钴生产技术经济评价
Extraction and Processing of Cobaltous Oxide from Waste ZnO Varistors
从废旧氧化锌压敏电阻片中提取及制备氧化钴
A Study on Producing Cobaltous Oxide with Potassium Cobaltinitrite Method
亚硝酸钴钾法制取氧化钴的研究