资料来源 : pyDict

纯度检验证明,品质证明加盖纯度检验证明

资料来源 : WordNet®

hallmark
     n 1: a distinctive characteristic or attribute [syn: {trademark},
           {earmark}, {stylemark}]
     2: a mark on an article of trade to indicate its origin and
        authenticity [syn: {authentication}, {assay-mark}]