短語詞組短語nuclear r explosion 核爆炸nuclear r explosion engineering 核爆炸工程nuclear -explosion stimulation 核爆炸激發(fā)nuclear cratering explosion 核爆破成坑nuclear test explosion 核爆炸試騐underground nuclear explosion 地下核爆炸low altitude nuclear explosion 低空核爆炸nuclear explosion device 核爆炸裝置cloud from nuclear explosion 核爆炸菸雲(yún) 返回 nuclear explosion