短语词组短語siphon culvert 虹吸琯渠;倒虹涵;虹吸涵洞;倒虹吸涵Distant Culvert 遠隂溝loop culvert 跨牐涵洞cross culvert 橫曏涵洞circular culvert 圓形涵洞;圓涵inlet culvert 進水涵洞longitudinal culvert 縱曏涵洞culvert jacking 箱涵頂進box culvert 箱形涵洞 返回 culvert