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山西旅游网-山西省旅游发展委员会官方网站
山西省旅游发展委员会,山西旅游网--新一代旅游信息网站,为用户提供文化、景点、行程、美图、自驾游等各种分类信息和其他旅游相关的网站入口,提供最简单便捷的旅游网上资讯服务。www.shanxichina.gov.cn
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Powerful and fun resource for kids, exploring astronomy and other space related topics. Play games, learn through interactive applications, and much more.www.kidsastronomy.com
- 2017-09-12 - 收藏Sky Telescope
Sky & Tel covers the latest night-sky events, astronomy news, astrophotography and observing tips. Also browse our video & podcast guides to tonight's sky.www.skyandtelescope.co 天空和望远镜(Sky & Telescope)是一份涵盖业余天文学各个方面的美国月刊。网站提供最新夜空事件,天文新闻,天文摄影和观察技巧。
- 2017-09-12 - 收藏physicsworld.com
physicsworld.com - news, views and information for the global physics community from Institute of Physics Publishingphysicsweb.org
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