短語詞組短語pipe and trench 工藝管溝accessible pipe trench 進入管溝common pipe trench 共同管溝indoor pipe trench 室內管溝outdoor pipe trench 室外管溝cable and pipe trench 電纜和管道溝pipe laid down into trench 沉管下溝trench type pipe 溝槽式管件 返回 pipe trench