fire escape stair
常見例句
- 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.
對(duì)安全評(píng)價(jià)對(duì)策措施中有關(guān)疏散樓梯、扶手、不發(fā)生火花地麪、輕質(zhì)易碎屋蓋以及火災(zāi)危險(xiǎn)性類別等建築要求進(jìn)行探討。 返回 fire escape stair