目的：探讨糖尿病大鼠视网膜中核运输因子2 (NTF2)的时空表达变化及意义。
AIM: to detect the expression and location of nuclear transport factor 2 (NTF2) in rat retina with diabetics.
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.
人类是第一复制因子的运输工具，是第二复制因子的复制机器。
We humans were vehicles for the first replicator and copying machinery for the second.
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