N ACRONYM for
multiple independently targeted re-entry vehicle: a missile that has several warheads, each one being directed to different enemy targets 多弹头分导再入飞行器
SinceRussiareliedmore heavily thanthe United States on MIRVs, the Russians would have tobuilda considerablenumberof single-warhead missilestoregainparity, andthey couldn’t afford to do it.