precipitation-runoff correlation
Precipitation and Runoff Relation
the annual precipitation and runoff
artifical increase of precipitation precipitation
Precipitation precdiction
precipitation preconcentration
chemical precipitation + solvent precipitation
05Cr17Ni4Cu4Nb precipitation hardening steel
15-5PH precipitation hardened stainless steel
17-4PH precipitation-hardened stainless steels
17-4PH(precipitation-hardened )stainless steels
1998 summer heavy precipitation in the Yangtze and Huaihe River valley
24 h accumulated precipitation
99 percentile of the daily precipitation
a few types of synoptic(perpendicular motion) precipitation
A nanoparticle-promoted Ag precipitation
ability of reduction and precipitation