ot-

The complications of this machine make it difficult ot handle correctly.

这部错综复杂的机器很难正确操作。

F ig.1 D ot b lotting p icture of p53 and bcl-2 of retina l tis-sue of 20-w eek d iabetic rat.

图1第20周糖尿病大鼠视网膜组织p53bcl-2 dotb lotting。验组为阳而对照组为阴。