rained动词rain的过去式和过去分词rainn.雨；雨水v.下雨；(雨点般)落下rain proofing performance of automobiles汽车防雨密封性Rainwater Harvesting Systems for Montana课堂提问rainwater-harvested furrow/ridge system沟垄集雨种植rainwater collecting and storing utilization雨水集蓄技术Rain harvesting and water-saving irrigation集雨节水补灌Rain Echo Attenuation Compensation Technology雨回声衰减补偿技术rain-gage with ultra-low power consumption超低功耗雨量计rainwater harvesting for supplemental irrigation集雨补灌Rain-shelter cultivation in plastic greenhouse大棚避雨栽培rainwater collection and water-saving irrigation集雨节灌