nuclear underground test

• 地下核试验

nuclear underground test的用法和样例：

例句

1. The UN Security Council has been persuaded to act with remarkable zeal in condemning North Korea's underground nuclear explosion this month.
   美国已说服联合国安理会以不同寻常的热忱对朝鲜本月进行的地下核试验予以谴责。