这个幻灯片是我们称为安全信封，它是来自IAEA，我想观察它最好的方法，就是从上往下看。

Here's a slide of what we call the safety envelope and it's from the IAEA and I guess the best way to look at this is to sort of look from the top down.

youdao

这个幻灯片是我们称为安全信封，它是来自IAEA，我想观察它最好的方法，就是从上往下看。

Here's a slide of what we call the safety envelope and it's from the IAEA and I guess the best way to look at this is to sort of look from the top down.

youdao