The distinguished name is only guaranteed to be unique per ca, so there is no reason one ca would know or care that the identical DN had been issued by someone else.
只能保证此专有名称对每个CA是唯一的，因此，一个CA没有理由知道或关心同一DN是否由其他机构颁发。
We know that formaldehyde is common in cosmic molecular clouds, so there's good reason to think Earth had plenty of this vital compound.
我们目前已知甲醛在宇宙分子云里面是很常见的，所以我们也可以认为早期的地球上有很多这种重要的化合物。
We know that formaldehyde is common in cosmic molecular clouds, so there's good reason to think Earth had plenty of this vital compound.
我们目前已知甲醛在宇宙分子云里面是很常见的，所以我们也可以认为早期的地球上有很多这种重要的化合物。
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