ground-zero零场域;长外套;爆心投影点
ground d zero地零点;爆心投影点
atomic bomb ground-zero広岛原爆爆心地
actual ground zero实际地面零点;真正核爆投影点
explosion ground zero爆心投影点
desired ground zero[军] 预期爆心投影点
Ground Zero Monument距离爆炸纪念碑;世贸纪念碑
Second ground zero二号地块
actual l ground zero实际地面零点
N-UNCOUNT（不可数名词） People sometimes use ground zero to refer to the site of a disaster such as a nuclear explosion. However, it is used especially in relation to the destruction of the World Trade Center in New York on September 11, 2001. 核爆点; 也指在9.11恐怖袭击中被毁的世贸中心 [美国英语]
Within a half-mile from ground zero, death from radiation poisoning will occur within twelve hours.
在核爆点半英里内，辐射中毒引起的死亡会在十二小时内发生。