曾经不过是第一复制因子的运输工具的一种生物,现在变成了第二因子的复印机。
A living creature, once just a vehicle of the first replicator, was now the copying machinery for the next.
这样增加了安全性,因为攻击者需要知道用户的口令,并且能够对提供第二因子的客户端进行访问,如e - mail账号或移动电话等。
Security is increased because an attacker needs to know the user's password and have access to whatever provides the second factor, such ane-mail account or cell phone.
成骨细胞分化所需的第二个重要转录因子是一种具有锌指结构的,对骨形成十分重要的转录因子。
A second important transcription factor required for osteoblastic differentiation is osterix.
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