inverted impulse siphon反向虹吸
inverted d siphon倒置虹吸管;潜管
inverted-siphon反虹管;倒虹吸;倒虹管
inverted-siphon with drop shaft竖井式倒虹吸管
inverted siphon projects倒虹吸工程
Inverted Siphon chamber倒虹吸闸室
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