常见例句The Application of Non-uniform Bellmouth in Prestressed Concrete Flat-beam 變截麪喇叭口在預應力混凝土扁梁中的應用bellmouth orifice 喇叭孔telescopic bellmouth 套筒式漏鬭口square bellmouth transition 方喇叭形漸變段bellmouth area 喇叭口區 返回 bellmouthing