From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nick Dokos <ndokos@gmail.com>
Subject: Re: How to omit "_" in org?
Date: Wed, 02 Mar 2016 11:54:40 -0500
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童俊翔 <tongjunxiang@gmail.com> writes:

> I want to write CN01_003_pla, in which the “_” doesn’t represent subscript. How to do this?
>
> Thank you!

#+OPTIONS: ^:nil

or

#+OPTIONS: ^:{}

The second gives you the ability to have super/subscripts
by enclosing them in braces, so

a_b gives an underscore while a_{b} gives a subscript.

--
Nick