... 摄影测量角锥体 photogrammetric pyramid 正角锥体 regular pyramid 尖劈截角锥体 frustumofwedge ...
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axis of a regular pyramid 正棱锥的轴
property of a regular pyramid 正棱锥的性质
regular triangular pyramid 正三棱锥
The guidelines, meant to be akin to the "Food Pyramid" nutritional advice, are based on studies that show clear health benefits from regular, moderate exercise.
份指南与之前的《食物金字塔》指南类似，是根据大量研究编撰的。此前很多研究表明，定期的、适度的锻炼能健康带来明显益处。
In this paper two new cone vertex orbits, which are circle and arc and regular triangular pyramid lines, have been proposed and their complete conditions for exact reconstruction have been obtained.
我们提出了圆加垂直弧段及三棱锥的三棱线这两种新的锥顶轨迹，并研究了以其进行精确重建所需的完全性条件。
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