此系统能识别用户唯一的个人心跳‘签名’；
The system can determine the user's unique individual heartbeat "signature";
如果存在，证书签名的哈希算法先被识别出来。
The hashing algorithm for the signature in the certificate is identified, if present.
他的演说很难听懂，他的签名颤颤巍巍地无法识别。
His speech was difficult to understand, his signature shaky and unrecognizable.
他的演说很难听懂，他的签名颤颤巍巍地无法识别。
His speech was difficult to understand, his signature shaky and unrecognizable.
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