Escape legend should be installed on the top of safe exit and within 1m on the wall of staircase, escaping corridor and corner.

疏散标志灯安装在安全出口的顶部，楼梯间、疏散走道及其转角处应安装在1m以下的墙面上。

youdao

At this time, I suddenly found that not only was stabbed bird's nest, but also people with a bamboo pole outside to coax Swallow, Swallow in the corridor so that no safe haven within.

这时，我突然发现，不但有人捅燕窝，而且还有人拿着竹竿往楼外哄燕子，使燕子在楼道内无处安身。

youdao

At this time, I suddenly found that not only was stabbed bird's nest, but also people with a bamboo pole outside to coax Swallow, Swallow in the corridor so that no safe haven within.

这时，我突然发现，不但有人捅燕窝，而且还有人拿着竹竿往楼外哄燕子，使燕子在楼道内无处安身。

youdao