A digital signature stamps a proof of origin authenticity.
数字签名标志原始的真实性的验证。
Public key cryptography, combined with the traditional symmetric cryptograph and the message digest technology, can provide confidentiality, integrity and proof of origin.
公钥密码技术结合传统的对称密码技术及信息摘要技术，可提供信息的保密性、完整性和信源确认，是多种安全应用的基础。
At first Gingerich thought the two bones were the single-pulley astragali from the animal's left and right legs-proof that he'd been right about the origin of whales.
起先，金格·里奇还以为这两根骨头分别来自动物左右腿的单滑轮踝骨——这也能证明之前鲸的起源推测是正确的。
Ethnological records are valuable references to our studying the origin of arts. But they can only be regarded as analogy materials rather than proof materials.
文章认为民族学材料对于我们研究艺术起源具有参考价值，但它只能作为类比材料而不能作为实证材料。
Manufacturing mode: plant design manufacture outside China, a country of origin proof, dynamometers shipment must be whole.
制造方式：在中国境外工厂设计制造，有原产国证明，测功器须整体发运。
Our company guarantees: each a bottle of imported wine and our products have lawful customs into a proof and tax payment receipts, ensure each wine for the origin of the national wine chong filling.
本公司担保：每一瓶的入口葡萄酒和本店产物都有正当的海关入关证明及完税凭据，担保每瓶酒都为原产国酒庄灌装。担保每样产物都为原意大利进口。
Our company guarantees: each a bottle of imported wine and our products have lawful customs into a proof and tax payment receipts, ensure each wine for the origin of the national wine chong filling.
本公司担保：每一瓶的入口葡萄酒和本店产物都有正当的海关入关证明及完税凭据，担保每瓶酒都为原产国酒庄灌装。担保每样产物都为原意大利进口。
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