...不开它的支持;一个数字证书必须包括主体 名(Subject Name),序号(Serial Number),起始日期(Valid From),终止日期(Valid To),签 发者名(Issuer Name)及公钥(Public Key),目前用得比较广的是X.509 标准数字证书。
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SIGSYS - Parameter not valid to subroutine.
SIGSYS—参数对于子例程无效。
Valid To date: End date of certificate's validity.
Valid To Date:证书有效期的结束日期。
Valid To date: End date of the ca certificate's validity.
Valid To Date: ca证书有效期的结束日期。
The incumbent has 54 percent of valid votes above the absolute majority needed to avoid a second round of balloting.
VOA: standard.2009.09.08
And the last thing we do for any of our structures to check them and figure out are these valid or not valid, are these good Lewis structures is to check the formal charge.
而为了检验任何一个结构是否有效,看它们是不是好的路易斯结构,我们要做的最后一件事就是检查形式电荷。
What must this experiment have the potential to do, to be a valid scientific experiment?
实验必须有做什么的能力,才能被称为一个有效的科学实验呢?
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