The image presents an edge-on, or limb view, of the Earth’s atmosphere as seen from orbit.

这张照片是轨道侧面，或者说是边缘视角观测到的地球大气景观。

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If the orbits of planets are not edge-on to observers on Earth, the technique underestimates the masses of the planets.

如果行星的轨道对于地球上的观测者来说并不是边缘向前的，这项技术会低估行星的质量。

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They have the edge on us.

他们略胜我们一筹。

《牛津词典》

And developers,logging companies, and strip-mine operators on the edge of the swamp can easily upset the delicate balance of nature in the area.

VOA: standard.2010.03.29

Working at the leading edge of research on cellular biology and genetic skin disorders, Fuchs was the first to precisely describe keratins - the principal structural proteins of skin cells - and identify diseases caused by mutations in the keratin gene.

VOA: standard.2010.03.29

But if the planet's orbit is nearly edge-on, as viewed from Earth, then the planet will transit its parent star.

ECONOMIST: Transits of Venus

This meant the circuit board would be edge-on to the sky, the worst position to pick up the satellite signals needed to determine its position.

ECONOMIST: Monitor

But Sharma's dismissal - harshly adjudged lbw to Ben Hilfenhaus (4-57) by umpire Ian Gould to a ball that would have missed leg stump - left the match on a knife-edge with India on 205-9.

BBC: VVS Laxman guides India to Test victory over Australia