Precipitations大气降水precipitationn.仓促；急躁；沉淀；降雨量；坠落；凝结；冰雹Precipitation electron沉降电子precipitation analysis沉淀分析precipitation creation沉淀precipitation capacity沉淀量precipitation strength沉淀强化,析出强化precipitation in china中国降水precipitation duration降水历时precipitation gelation沉淀凝胶化precipitation forecast降水预报precipitation extremes极端降水