emergency gallery

• 非常出口坑道

emergency gallery的用法和样例：

例句

1. Emergency conditions may dictate at least the initial use of trench latrines.
   紧急情况下，可能必须开始使用坑道厕所。
2. The geoisotherms around a gallery can be explained as a superposition of the original temperature field.
   一个坑道周围的等温线可以理解为原始温度场的叠加。