precipitation pH降水pH值precipitationn.仓促；急躁；沉淀；降雨量；坠落；凝结；冰雹precipitation clutter suppression[电子]雨滴杂波抑制precipitation static atmospherics雨滴天电precipitation-evaporation index降水蒸发指数precipitation during Meiyu period梅雨期降水precipitation containing titanium含钛析出物precipitation runoff relationship降水径流关系precipitation strengthening alloy沉淀强化合金precipitation static interference雨雪静电干扰precipitation effectiveness index降水有效指数,桑斯威特降水效率指数precipitation trapping efficiency除尘器捕集效率

1. To determine the human dose-response curve, one must extrapolate down from the high-dose laboratory data.
   要确定人类的剂量反应曲线，就必须从高剂量的实验室数据进行外推。