参与该研究的资深作者吴喜凤教授表示，肺癌患病率的决定性因素在于含碳水化合物食物的“平均质量”，而非数量。
The study's senior author Dr Xifeng Wu said it is the "average quality" and not the quantity of carbohydrates that determines the risk of lung cancer.
同时要加强对影响平均住院日的管理因素的控制，提高医疗质量，缩短平均住院日。
At the same time, we should strengthen control these factors to improve the medical quality and shorten the average hospital stay.
该方法将污染的最大因素和平均因素结合到一起，运用污染幅员这一直观的概念，比较全面地描述了环境质量状况。
The environmental quality can be described more completely using pollution range and combining the maximum pollution factor with the average one.
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