floorway桥面系统floorn.地面；地板；楼层；底部vt.铺地板；击倒；(油门)踩到底floor water inrush底板突水floor Displacement层间位移floor of coal seam煤层底板floor paving brick铺地砖floor-increasing加层floor conformation基底构造floor the question令人满意地回答问题floor walking test步行试验floor type grinder落地式砂轮机floor steel plates铺地钢板