短语词组短語Riser Distribution Cable 垂直分佈式光纜Riser Interconnect Cable 乾級線內部連接用光纜Ribbon Riser Cable 帶狀竪井線纜vertical riser cable 直陞裝置用電纜self -supporting riser cable 自承式提陞型電纜electric cable riser 電纜立琯 返回 riser cable