According to the descending level of the inferior margin of Douglas cavity, mild (0.6~1.5cm,n=14),moderate (1.6~3.0cm,n=2) and severe (>3.0cm,n=1) degree were subclassified.是什么意思_According to the descending level of the inferior margin of Douglas cavity, mild (0.6~1.5cm,n=14),moderate (1.6~3.0cm,n=2) and severe (>3.0cm,n=1) degree were subclassified.在线翻译_英语_读音_用法_例句