日常组织的健康体检项目中,CA199是最常见的肿瘤筛查指标之一。作为一个经典的肿瘤生物学标志物,似乎它升高了就意味着得了肿瘤。真的是这样吗? CA199是人体细胞膜上的一种糖脂质,分布于正常胎儿胰腺、胆囊、肝、肠和正常成年人胰腺、胆管上皮等处。它在血液中以唾液粘...
The goal of CEL is to encourage customers to buy energy-saving products, thereby supporting the sales of energy-efficient devices in China. The label includes the product’s energy efficiency class (from grade 1 to grade 3, grade 1 being the highest), as well as information regarding its en...
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【独家】下载式CA智能电视一体机的可行性 摘要:本文通过简要回顾电视一体机发展的历程,分析了一体机不能终端市场化的原因与广电CA不开放性的关系,以及CA不开放性对于广电未来的影响。简述了DCAS落地情况,提出了开发智能电视一体机的具体方法和步骤,证明了下载式CA...
持有证书者唯一标识符在第2版的标准中加入X.509证书定义。此域用在当同一个X.500名字用于多个证书持有者时,用一比特字符串来唯一标识证书持有者的X.500名字。可选。11.签名算法(Signature Algorithm) 证书签发机构对证书上述内容的签名算法 example: sha1WithRSAEncryption12.签名值(Issuer's Signature) ...
[-out filename] [-sign filename] [-keyform arg] [-passin arg] [-verify filename] [-prverify filename] [-signature filename] [-hmac key] [file...] 常用选项有: [-md5|-md4|-md2|-sha1|-sha|-mdc2|-ripemd160|-dss1] :指定一种加密算法 ...
(CSR)",等待进行签发 -days arg 表明将要签发的证书的有效时间 -CA arg 指定用于签发请求证书的根CA证书 -CAform arg 根CA证书格式(默认是PEM) -CAkey arg 指定用于签发请求证书的CA私钥证书文件,缺省认为私有密钥在CA证书文件里有 -CAkeyform arg 指定根CA私钥证书文件格式(默认为PEM格式) -CAserial arg ...
在电子合同中，CA认证的主要用途包括：1、身份验证：确认合同各方的真实身份，确保合同是在已知和可信的...
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