The elevator that runs from the ground floor to the fifth floor will be replaced and will ascend and descend in a new, fire-resistant shaft.
原从 地面至五楼的电梯将被更新，同时风井将改为防火的。
Ash is overmuch, fire resistant layer below the furnace, and the total floor joists top and on the high side.
除灰过多，火层低于炉栅顶端，而总层又偏高。
应用推荐