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单词 小行星
释义 〔planet〕A nonluminous celestial body larger than an asteroid or a comet, illuminated by light from a star, such as the sun, around which it revolves. In the solar system there are nine known planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.行星:比一颗小行星或一颗彗星大的不发光的天体,由它绕转的恒星,如太阳的光所照亮在太阳系中有九个已知的行星:水星、金星、地球、火星、木星、土星、天王星、海王星和冥王星〔meteoroid〕A solid body, moving in space, that is smaller than an asteroid and at least as large as a speck of dust.流星体:活动在空间的固体天体,比小行星小,至少与尘埃一样大〔Ceres〕The largest asteroid and the first to be discovered, having an orbit between Mars and Saturn.谷神星:最早被发现的最大的小行星,其轨道在火星和土星之间〔Piazzi〕Italian astronomer who discovered (1801) the first asteroid, Ceres.皮亚齐,朱森皮:(1746-1826) 意大利天文学家,他于1801年发现了第一颗小行星——谷神星〔Ward〕British economist, conservationist, and writer whose works on ecology and political economy includeSpaceship Earth (1966) and Progress for a Small Planet (1980). 沃德,芭芭拉:(1914-1981) 英国经济学家、自然资源保护论者、作家,其关于生态保护和政治经济学方面的著作包括《地球飞船》 (1966年)和 《一个小行星的发展》 (1980年) 〔Pallas〕One of the largest asteroids, the second to be discovered.小惑星:最大的小行星之一,第二个被发现〔Icarus〕An asteroid with an eccentric orbit approaching within 30 million kilometers (19 million miles) of the sun.伊卡鲁斯:一个具有离心轨道的小行星,它在离太阳三千万公里(一千九百万英里)的范围内接近太阳〔Trojan〕Of or relating to a celestial body, especially an asteroid, that is in one of the Lagrangian points of a two-body system. Used especially of any of a group of asteroids that orbit at Jupiter's distance from the sun, but 60° ahead of or behind the planet.特洛伊银河体系:为双体系统中拉格朗日点上一个天体的,尤指小行星,或与之相关的。特别用于指代以木星到太阳的距离沿轨道运行,但以60或更高的角度,位于行星之前或之后的一群小行星中的任何一个
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