短语词组短语Black Zinc Cobalt 外壳电镀black k cobalt 钴土矿black oxide of cobalt 钴黑black tin -cobalt alloy baths 锡钴枪色镀液cobalt black [颜料]钴黑;三氧化二钴;一氧化钴;翻译no -cobalt black glaze 无钴黑釉non -cobalt black glaze 无钴黑釉 返回 black cobalt