underground air raid shelter

• 地下防空洞

underground air raid shelter的用法和样例：

例句

1. The building was constructed over ancient Yellow River and its dike, and an air raid shelter underneath.
   该建筑物的基础横跨黄河故道及堤岸，并贯穿有地下防空洞。
2. This article presented the basic principle about inspecting undergroud air-raid shelter with the method of transient rayleigh waves and offered a new method.
   本文介绍了瞬态瑞雷波法探测地下防空洞的基本原理，提出了一种改进的方法。