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苏联伏龙卓夫—维略明夫著诺金乃学译中国青年出版社1953年9月出版每册3,200元宇宙是饶有兴味的研究对象。在夜晚,抬头一看,天空缀满着数不清的星星。用最大的望远镜所能望见的星星有一百万颗。平常肉眼能够看见的才不过三千来颗。可是,这不过是整个宇宙中极其有限的一部分。宇宙,在时间上没有起始和尽头,在空间上没有边界。在宇宙里,有着无数的恒星系统(星系)。在这许多星系中,我们的太阳所在的那个星系,叫做银河系。单是这一个银河系,估计至少有一千亿个以上的恒星。每一个恒星都是遥远的太阳。而我们的太阳只是其中并不出色的一个。我们迫切地希望了解宇宙间的各种现象,昼夜为什麽有变
The Soviet Union Volkhov-Villiamev’s Book of Noginal Translations China Youth Press published in September 1953 each volume of 3,200 yuan is a subject of interest. At night, looking up, the sky is full of countless stars. There are one million stars that can be seen with the largest telescope. Only three thousand particles can be seen by the naked eye. However, this is only a very limited part of the entire universe. The universe has no beginning and end in time and no boundary in space. In the universe, there are countless star systems (galaxies). Of the many galaxies, the galaxy where our sun is located is called the Milky Way. This single galaxy alone is estimated to have at least 100 billion stars. Every star is a distant sun. And our sun is just one of them not outstanding. We are eager to learn about the various phenomena in the universe and why they stay up late