天顶，即头顶正上方的天球点，属铅垂线无限延伸与天球交两点之一。天顶点是测量坐标系中的一个特殊点，位于观测者头顶的正上方。天顶区域作为整个天空区域的中心，是太阳子午线和太阳子午线过天顶的垂线的交点。
网络释义专业释义
双语例句原声例句
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波利尼西亚人确定方位的一个重要方法是通过天顶星。
One important way the Polynesians had for orienting themselves was by using zenith stars.
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是龙从天顶降落来，向终点飞去。
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1508年，他开始在西斯廷大教堂画天顶壁画，这些壁画历时4年完工。
In 1508, he began painting his frescoes on the ceiling of the Sistine Chapel which took 4 years to finish.
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Soon the sun's warmth makes them shed crystal shells - Shattering and avalanching on the snow crust-- Such heaps of broken glass to sweep away You'd think the inner dome of heaven had fallen.
阳光的温暖接着使那水晶的硬壳,从树枝上崩落，一齐倾泻在雪地上-,这么一大堆碎玻璃尽够你打扫,你还以为是天顶的华盖塌了下来。
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