The flow and condensation of supersonic steam jet submerged in the quiescent subcooled water were investigated experimentally at first. 首次針對超音速蒸汽在過冷水中浸沒射流流動與凝結換熱特性進行了系統的實驗研究。
AgI-seeding should be done before the activation of most ice nuclei start, so as to enhance rainfall through increasing ice crystals content, and deleting super-cooled cloud water. 結果表明，該地區秋季對流雲降水主要為冷雲降水，冰晶是霰產生的主要來源，冰霰自動轉化是霰產生的最主要方式，冰晶與霰的碰並又促進了霰的進一步增長，霰是雲中過冷水消耗的主要因素。
