Precipitation-Runoff  降雨－径流

precipitation-runoff correlation  降水与径流关系

Precipitation and Runoff Relation  降水和径流关系

the annual precipitation and runoff  降雨与径流

artifical increase of precipitation precipitation  海水淡化

Precipitation precdiction  降水预测

precipitation preconcentration  沉淀富集

runoff runoff  河川径流

chemical precipitation + solvent precipitation  化学沉淀+溶剂沉淀

05Cr17Ni4Cu4Nb precipitation hardening steel  05Cr17Ni4Cu4Nb沉淀硬化不锈钢

15-5PH precipitation hardened stainless steel  自动呼叫装置; 15-5PH沉淀硬化不锈钢

17-4PH precipitation-hardened stainless steels  17-4PH铸造不锈钢

17-4PH(precipitation-hardened )stainless steels  17-4PH铸造不锈钢

1998 summer heavy precipitation in the Yangtze and Huaihe River valley  鹰头; 1998年夏季江淮流域降水

24 h accumulated precipitation  24h累积降水

99 percentile of the daily precipitation  99百分位日降水量

a few types of synoptic(perpendicular motion) precipitation  天气学降水计算

A nanoparticle-promoted Ag precipitation  银增强

ability of reduction and precipitation  还原沉淀能力