means of egress meaning in English

出口装置
疏散设施

Accessible means of egress
容易到达的出口设施
Means of egress code
出口编码方法
Not only was the first gendarme still there , but the young man now perceived a second yellow , blue , and white uniform at the foot of the staircase , the only one by which he could descend , while a third , on horseback , holding a musket in his fist , was posted as a sentinel at the great street door which alone afforded the means of egress
不但第一个宪兵依旧站在那儿，他现在发觉第二个穿黄蓝白三色制服的人站在楼梯脚下，他下楼唯一的柴梯，而第三个宪兵则骑着马，手里握着火枪，象一个哨兵似的站在大门口的街上，而钟瓶旅馆又只有这样一个出口。