three age groups的意思|示意

Participants were balanced across the three groups for age, sex, educational background, severity and duration of depression, and use of antidepressants.

就年龄、性别、教育背景、抑郁症的严重程度和持续时间以及抗抑郁药物的使用这几点来说，这三组参与者都保持了平衡。

The distributions of the three in different age groups were the same ( P >0.25), but the last two had higher dioptry ( P< 0.05), and higher morbidity of macular disorders ( P< 0. 005 ).

各型患者在不同年龄组中的分布相同（P>0.25），但脾肾阳虚者表现为屈光度较高（P<0.05）及具有更高的黄斑病变发生率（P<0.005）。

Study subjects were divided into three age groups.

研究对象被划分为三个年龄段。

Zheng said the medical resources consumed by the aged were three times or higher than people of other age groups on average.

郑先生说，老年人的医疗资源消耗量比其他年龄群体的平均消耗量要高出3倍。

Li said the medical resources consumed by the aged were three to five times higher than other age groups.

李先生说，由老年人所消耗的医疗资源比其他年龄的人要高出3 - 5倍。

The scientists then disassembled the bees' new home and forced groups of mixed-age bees to choose between three alternative nest locations, including the former nest box.

有成年和老年蜜蜂的小组得到了几天识别“新家”、忘却“老家”的训练。随后科学家拆除“新家”，让不同年龄的蜜蜂们在三个“家庭住址”里选择，这里面就有它们的“老家”地址。