Order your nanites to intercept attacks against one of your subsystems. They will reduce all incoming damage directed at it.

Skill: Nanotech
Group: Defenses
Command: NANO INTERCEPT [SUBSYS/OFF]
Known: No
Lessons: 221 Lessons
Ability type: Noncombat utility
Base balance time: 3.00 seconds
Resources required: 1.00M nanites
Nanites are tied up while the ability is in effect.