zone fire の意味「区域射撃」

意味	区域射撃 artillery or mortar fire delivered in a constant direction at several elevations so as to cover an area

zone fireのWordNet

意味	artillery or mortar fire delivered in a constant direction at several quadrant elevations 一定の方向でいくつかの射角により行われる火砲または迫撃砲の射撃
上位語	artillery fire砲撃 cannon fire大砲の発砲