kepler's law of planetary motion
常見例句
- The Laws of Planetary Motion Kepler's First Law: The orbits of the planets are ellipses, with the Sun at one focus of the ellipse.
行星沿橢圓軌道繞太陽(yáng)運(yùn)行，太陽(yáng)位於橢圓的一個(gè)焦點(diǎn)上。 對(duì)任一個(gè)行星說，它的逕矢在相等的時(shí)間內(nèi)掃過相等的麪積。 返回 kepler's law of planetary motion