Seen here, the near perigee Full Moon still hugs the horizon, distorted by atmospheric refraction as it rises over Boston, Massachusetts, USA.
在上面这张照片中，这轮因大气折射而显得有些变形的超级满月，紧挨着地平线，就好像正在美国波士顿市上空冉冉升起。
High frequency skywave over-the-horizon radar can provide a wide coverage beyond the horizon by means of refraction within the ionosphere.
高频天波超视距雷达通过电离层的折射作用，具有同时超视距监测大区域范围的能力。
The refraction effect on positioning of the over-the-horizon radar signal is analyzed. The charts of the refractive error(elevation error and range error) are also given.
主要分析对流层的折射效应对超视距雷达信号定位的影响，并且给出相应的折射误差图（仰角误差和距离误差）；
Due to the refraction of light rays, it is impossible for the naked eye to determine the exact location of a star close to the horizon.
由光线光线会发生折射，因此用肉眼无法确定一颗接近地平线的星星的确切位置。
Due to the refraction of light rays, it is impossible for the naked eye to determine the exact location of a star close to the horizon.
由光线光线会发生折射，因此用肉眼无法确定一颗接近地平线的星星的确切位置。
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