Film- covered can respectively increase the average and fastest accumulation rate of dry matter by 21.6, 21.8 percent, and increase the biological yield by 22 percent.是什么意思_Film- covered can respectively increase the average and fastest accumulation rate of dry matter by 21.6, 21.8 percent, and increase the biological yield by 22 percent.在线翻译_英语_读音_用法_例句