Exposure latitude: its lower limit is at the intersection point of the two curves, with an exposure time of 15 units for the example below.
地理纬度：其下限暴露在交叉点的两曲线，与一个曝光时间15个单位为下面的例子。
The Maine studies focused on the way that UVR exposure varies according to latitude, and the effects this seemed to have on the characteristics and health of populations.
缅因医院的研究关注于紫外线照射在不同纬度的变化，其似乎对不同人群的性格和健康都有效果。
The Maine studies focused on the way that UVR exposure varies according to latitude, and the effects this seemed to have on the characteristics and health of populations.
缅因医院的研究关注于紫外线照射在不同纬度的变化，其似乎对不同人群的性格和健康都有效果。
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