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countersignature

['kauntə'sɪgnəʧə] 名词
微软 contra-assinatura (A signature of an existing signature and message or a signature of an existing signature. A countersignature is used to sign the encrypted hash of an existing signature or to time stamp a message)
微软, 巴西 referenda (A signature of an existing signature and message or a signature of an existing signature. A countersignature is used to sign the encrypted hash of an existing signature or to time stamp a message)
政治 assinatura
法律 referenda ministerial