The steel Roof of the Beijing Sport University Track and Field Training Center is a large-span spatial steel tube truss structure.
北京体育大学田径训练中心屋盖为大跨度空间钢管桁架结构。
2
Temperature span is one of the main factors to affect the jointless track on bridge.
温度跨度是影响桥上无缝线路的主要因素之一。
3
By analyzing the track of vehicle's lane changing and the span of lane changing, we establish the relation between velocity and Angle of lane changing.