The difficulty is the viewing geometry that puts any Trojan, from the perspective of an Earth-based telescope, in bright skies.

观测特洛伊小行星的难点在于，在通过地面望远镜观测时，几何角度总是使其位于明亮的天空中。

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The Renaissance masters turned geometry from a craft into the liberal art of perspective.

文艺复兴时期的大师们将几何从一门手艺变成了透视画法的一门艺术。

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As Einstein's general relativity was established, people discussed gravitation from the perspective of the geometry, whereas, forgot the mechanical nature of it.

爱因斯坦广义相对论建立后，人们都从几何的角度讨论引力，反而把引力的力学本质忘记了。

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These paintings were a source for Piero della Francesca's cycle on the same subject, painted in Arezzo in the middle of the following century, though Gaddi, with happy disregard for realism in scale, hardly anticipates the rigorous perspective and complex geometry of Piero's work, not to mention its cold, clear atmosphere or the figures' graceful stillness.

WSJ: A Heavenly View From On High | Basilica of Santa Croce | Agnolo Gaddi | By Francis X. Rocca