When nitrogen content was increased from 2.8.9% to 3.64%, NAR did not change while NUR and index of population growth decreased by 25% and 10%, respectively.是什么意思_When nitrogen content was increased from 2.8.9% to 3.64%, NAR did not change while NUR and index of population growth decreased by 25% and 10%, respectively.在线翻译_英语_读音_用法_例句