largespan大跨径largeadj.大的；大量的；大号的；广泛的adv.夸大地；[航海]顺风地v.狂欢作乐Large scale air vane大尺度空气舵large-scale survey大比例尺测量large pored concrete大孔隙混凝土large depth of field大景深large hydrogenerator大型水轮发电机large assembling die大型组合模具large section tunnel大断面隧道large scale soil map大比例尺土壤图large section mining大断面开采large section height大段高