The IceCube observatory sits deep underneath the South Pole and has been built in a cubic kilometre of perfectly clear, bubble-free ancient ice.
冰立方天文台身处南极点地下深处一块巨大的、纯净的、无气泡的远古冰块中。
This ancient observatory was built by the astronomers Wang Xun and Guo Shoujing. Its original name was the Administration of Heavenly Observatory.
这座古老的观象台，由元代天文学家王恂。郭守敬奉命修建，原名司天台。
This ancient observatory was built by the astronomers Wang Xun and Guo Shoujing. Its original name was the Administration of Heavenly Observatory.
这座古老的观象台，由元代天文学家王恂。郭守敬奉命修建，原名司天台。
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