常見例句The Application of Non-uniform Bellmouth in Prestressed Concrete Flat-beam 變截面喇叭口在預應力混凝土扁梁中的應用bellmouth orifice 喇叭孔telescopic bellmouth 套筒式漏斗口square bellmouth transition 方喇叭形漸變段bellmouth area 喇叭口區(qū) 返回 bellmouthing