During the major onset of downy mildew,The PPO and POD activities in leaves were determined in three grapevine varieties(lines),8804,Merlot and Cabernet Franc.是什么意思_During the major onset of downy mildew,The PPO and POD activities in leaves were determined in three grapevine varieties(lines),8804,Merlot and Cabernet Franc.在线翻译_英语_读音_用法_例句