After the talks, the two sides signed documents on bilateral cooperation in the fields of economy and trade, telecommunications, culture, education and health.
会谈后，双方签署了涉及经贸、电信、文教、卫生等领域的合作文件。
If the private key that's lost is only used for digitally signing the documents, a new key may be generated without affecting the validity of the existing signed documents.
如果丢失的私钥只是用于数字签名文档，那么就可以生成一个新的密钥，而不会影响对已经签名的文档的有效性。
If the private key that's lost is only used for digitally signing the documents, a new key may be generated without affecting the validity of the existing signed documents.
如果丢失的私钥只是用于数字签名文档，那么就可以生成一个新的密钥，而不会影响对已经签名的文档的有效性。
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