地面亮度温度的测量值随观测天顶角、方位角和太阳位置而改变。
As expected, the measured brightness temperatures change with view zenith angle, view azimuth angle, and the Sun position.
天顶画一个伟大之处是，你可以站在它下面的任意位置，欣赏这个独特的艺术作品。
One great aspect of the ceiling is that you can stand just about anywhere underneath it and view a single, distinct work of art.
土星的位置很棒接近天顶处，成像相当的漂亮和锐利。
Saturn was well placed nearly overhead in the sky, and looked very nice and sharp.
土星的位置很棒接近天顶处，成像相当的漂亮和锐利。
Saturn was well placed nearly overhead in the sky, and looked very nice and sharp.
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