補ほ給きゅう幹かん線せんほきゅうかんせんMeanings1nounmain supply routeMilitary and logistics term for the primary route used to transport supplies to the front or to a base.敵てきは補ほ給きゅう幹かん線せんを断たとうとしている。The enemy is trying to cut off the main supply route.