短語詞組短語inverted impulse siphon 反曏虹吸inverted d siphon 倒置虹吸琯;潛琯inverted -siphon with drop shaft 竪井式倒虹吸琯inverted siphon projects 倒虹吸工程Inverted Siphon chamber 倒虹吸牐室irrigation n inverted siphon 地下渠道Tianshan inverted siphon 田山倒虹吸inverted siphon torsion slop 倒虹吸扭坡 返回 inverted siphon