Unexploded ordnance 未爆炸弹药
(重定向自UXO)
Unexploded ordnance (UXO, sometimes acronymized as UO), Unexploded bomb (UXB), or Explosive remnants of war (ERW) are explosive weapons (bombs, shells, grenades, land mines, naval mines, cluster munitions, etc.) that did not explode when they were employed and still pose a risk of detonation, potentially many decades after they were used or discarded.