The allowable rates (23.4% for croplands and -37.2% for paddy) calculated out by mathematical appraisal model showed that, the nitrogen balances of croplands and paddies were relatively reasonable.是什么意思_The allowable rates (23.4% for croplands and -37.2% for paddy) calculated out by mathematical appraisal model showed that, the nitrogen balances of croplands and paddies were relatively reasonable.在线翻译_英语_读音_用法_例句