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pre·cip·i·ta·tion AHD[prĭ-sĭp'ĭ-tāʹshən] D.J.[prɪˌsɪpɪˈteɪʃən]K.K.[prɪˌsɪpɪˈteʃən]n.（名词）- A headlong fall or rush.猛然落下或冲下
- Abrupt or impulsive haste.急躁或冲动
- A hastening or an acceleration, especially one that is sudden or unexpected:陡然，促然：尤指突然的或出乎意料的急促或加速：He is responsible for the precipitation of his own demise.他得为自己的卒死负责
- Abbr. pptn.Meteorology 缩写 pptn.【气象学】
- Any form of water, such as rain, snow, sleet, or hail, that falls to the earth's surface.降水：暴雨、雪、冻雪或冰雹降落到地表的任何形式的水
- The quantity of such water falling in a specific area within a specific period.降水量：某一特定时期内特定区域的降水数量
- Chemistry The process of separating a substance from a solution as a solid.【化学】 沉淀：把物质从溶液中分解为固体的过程
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