The Study on Estimation Models of Dry Basis Moisture Content and Leaf Dry Matter to Leaf Area Based on Color Feature of Crop Leaves under Different Nitrogen Levels是什么意思_The Study on Estimation Models of Dry Basis Moisture Content and Leaf Dry Matter to Leaf Area Based on Color Feature of Crop Leaves under Different Nitrogen Levels在线翻译_英语_读音_用法_例句