词汇	川梁
释义	川梁 chuān liáng桥梁。
随便看	underground nuclear blast underground nuclear explosion underground nuclear explosion effect underground nuclear power plant underground nuclear power station underground nuclear test underground nuclear unit underground nuclear weapons underground object detection Underground objects detection underground objects orientation underground obstacles underground obstruction underground office underground of mine underground of reinforced concrete storeroom underground oil depot underground oil depot survey Underground oil-pipeline Underground oil pipelines underground oil reservoir underground oil storage underground opening underground openings underground openings and tunnels