Answer:
Enabled factory workers to produce more complicated goods with precision
Step-by-step explanation
We may think that for soldiers (of any country and any service) in WWI total war meant war 24/7. This simply mean that the soldier never really "disconnected" from the horror of the front being continuously under pressure from the traumatic experiences suffered on the front line (heavy bombing, machine gun massacres, poisonous gasses, torpedoing, snipers, filth, disease, vermin and in general...horrible misery) even if resting far from it.