I just only installed the latest version of NEI and AE2-rv3.beta build 3, and pressed ‘U’ to ask NEI for the usage of an item, then MineCraft crashed.
It seems that the same crash happens since AE2-rv3.alpha build 10, but actually I haven't seen the same issue here till now.....

Crash-report: http://pastebin.com/ZV8KJCX9
Forge client-latest-log: http://pastebin.com/515RuEYy

Which language are you using?

It looks like whoever did the translation messed with the string formatting.
But this is really something we cannot verify ourselves and have to trust the translators.

from log file "Current Language: 简体中文 (中国)"(Simplified Chinese)

Edit: https://github.com/AppliedEnergistics/Applied-Energistics-2/blob/master/src/main/resources/assets/appliedenergistics2/lang/zh_CN.lang#L192-L193 here

Pretty sure @bakaxyf is still busy with school stuff, so I will handle it.

Edit: never mind, @GWYOG might is going to handle it.
Edit*2: might--->is going to

Yep, using Chinese. I've made a pr to fix the glitch, please merge it.

I'm sorry for my mistake. I think it (#2092) can be marge now.