全金屬外殼

Can be found in Simulated Universe 4.

"Full Metal Jacket" is a 1987 war film directed by Stanley Kubrick. The title is derived from the term "full metal jacket," which refers to a type of bullet with a soft lead core surrounded by a harder metal shell such as cupronickel or gilding metal. The concept represents the hardened exterior or protective shell that soldiers often develop in the face of war and the dehumanizing effects of combat.