platform stair造句

例句与造句

1. On the scaffolding operation platform stairs , safety way , entrance has overspread by wooden board , should set up handrail
   3操作层各步架上、安全通道、入口走道均满铺脚手板，设置安全扶手
2. The results show that only supplying air to platform stairs and simultaneously extracting smoke of fire zone can a best safe evacuation environment in the station be maintained
   模拟结果表明，只有同时对站台楼梯送风防烟和对火源所在防烟分区及时排烟，才能在车站内实现最有利于人员疏散的安全环境。
3. It's difficult to find platform stair in a sentence. 用platform stair造句挺难的