escape stair
常见例句
- This paper discussed the safety countermeasures in the aspect of building such as fire-escape stair, handrail, unsparking ground, light weight and fragile roof and fire risk.
对安全评价对策措施中有关疏散楼梯、扶手、不发生火花地面、轻质易碎屋盖以及火灾危险性类别等建筑要求进行探讨。 返回 escape stair