Translating a little:

DPS = Damage you do.

rDPS = Damage your group do.

Wipe = Everyone on your party is dead. A.K.A. the boss used your party to mop the floor.

Enrage = A move that is 100% sure that will kill your party. It is like Chuck Norris doing Roundhouse Kick on your party. You lose.

Enrage Timer = If your party don't kill the boss before this timer runs out, you guys will get hit by enrage. A.K.A. how much time you guys have before the boss stops playing and starts mopping the floor with you guys' bodies.

DPS requirements = Amount of damage your group must do to not get hit by enrage.