基本解释[农业科学]能氮平衡英汉例句双语例句And meanwhile, diet investigation was carried out to calculate daily energy intake(DEI), daily protein intake(DPI) and the balance of nitrogen.实验前后同时进行饮食调查，计算每日热量摄入及蛋白摄入，并计算氮平衡。energy and nitrogen balance更多例句专业释义农业科学能氮平衡