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Terms for subject Water resources containing 圆筒 | all forms | in specified order only
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圆筒rock weir
圆筒rock dam
圆筒拱坝cylindrical radius dam
圆筒roller gate
圆筒垂直圆筒闸门cylindrical valve
滑动圆筒活门slide cylindrical valve
圆筒阀门high cylindrical valve