Pluto is not classified into either the terrestrial or jovian planets due to its special features 冥王星可算是九大行星中的蝙蝠,它不是类地行星,亦不属于类木行星。
The smaller rocky worlds are mercury , venus , earth and mars . the four huge gas planets are jupiter , saturn , uranus and neptune 类地行星是水星、金星、地球和火星。四类木行星木星、土星、天王星和海王星。
A planet that may be earth - like - but too hot for life as we know it - has been discovered orbiting a nearby star 最近,天文学家新发现了一颗类地行星,它围绕着附近的一颗恒星运转。但从已知情况来看,其表面温度太高,不适合生命生存。
Its density is roughly 2 . 3 times that of water . usually , the jovian planets have density less than 2 , while terrestrial planets have density more than 5 冥王星的密度约为水的2 . 3倍通常来说,类木行星的密度会小于2 ,而类地行星的密度则大于5 。
地: the earth行星: planet类地行星发现者号: tpf terrestrial planet finder类地租: quasi rent兽类地: bestially属类地: generically行星: [天文学] planet 大行星 major planet; 内行星 inferior planet; 外行星 superior planet; 小行星 minor planet; 一等行星 primary planet地行者: landwalk土地行: land bank of taiwan战地行: journey to a war丙类地盘: class c site不同类地: heterogeneously地衣类地被: lichen cover分类地位: systematic status甲类地盘: class a site类地效翼船: wing in ground craft a; wing in ground craft b b人类地层学: anthropostratigraphy人类地理学: anthropogeography; human geography; humangeography水藓类地被: sphagnum cover乙类地盘: class b site无类地址分配: cla le addre ing; classless addressing笨重地行动: move or fall heavily or awkwardly笨重地行进: lumber room; lumber-room笨重地行走: lump along大胆地行动: enter action with boldness