It was found that three times as much rain fell to the ground from seeded single clouds as from unseeded clouds.
人们发现从播撒过的单个云中降落到地面的雨量，是从未经播撒云中降落下来的3倍。
2
Methods Coated PLA, PGA, PLGA with poly-l-lysine, free chondrocytes isolated from rabbit articular cartilage were seeded onto three kinds of scaffolds after expansion by in vitro culture.