You can shift + left click to get information of the resistance and damage proc stats like the cold, heat, current, etc. However, I have only a vague clue of the other enchantsments like:
Feedback (guessing it does damage back to the attacker when hit?)
Engraved (not a clue)
Magic Aura (not a clue)
Engraved will give a bonus to the corresponding weapon or armor skill that uses it. So if it is on a sword engraved would cause +5 to your sword skill (only applicable if you actually have the skill). If it were a peice of leather then it would give +5 to light armor (again only applicable if you actually have the skill).
Magic Aura reduces damage taken by any type magic whether it be ice, lightning, fire, or raw magic when that peice of armor is "hit". I tink Magic Aura is +5 or + 10% if i recall. So damage would be reduced by 5 or 10 percent accordinly but only if that peice of armor is selected randomly as hit (the different peices are hit based on size/importance for example your head/body are most likely hit then legs then hands). If your using a shield the calculation is significantly adjusted because first shield is checked to see if you block the magic/melee damage then further reduction is processed from armor.
Hope this provides some background to you.
Thanks
Chris