This document is two pages long, and is intended to help you decipher and then translate your teacher's written remarks on your essays.These remarks--many of which are commonly used by other editors and teachers in a variety of fields-- are often written in a highly abbreviated form, hence the need for a way to quickly translate them.
Here's another one to add to the list:
"repet." = repetitive; you've already said this elsewhere ( usu. earlier )