短语词组短语raindrop erosion [地质]雨滴侵蚀;溅击侵蚀;溅击腐蚀;雨滴腐蚀Raindrop splash 雨滴溅沫raindrop freezing 雨滴冻结raindrop disdrometer 冲力雨滴谱计small raindrop 小雨点little raindrop 山田优raindrop density 雨滴密度raindrop energy 雨滴动能fossil raindrop 古同心层火山渣 返回 raindrop