... 日承，环地平弧 circumhorizonal arc 月球周围 circumlunar 近子午圈天顶距 circummeridian zenith distance ...
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中国一座太空探测器在发射八天之后成功进入月球周围的轨道。
A Chinese space probe has successfully entered orbit around the Moon eight days after it was launched.
中国一座太空探测器在发射八天之后成功进入月球周围的轨道。
Chinese space probe has successfully entered orbit around the Moon eight days after it was launched.
卫星上的其它仪器将研究月球表面下的情况，收集月球周围太空环境数据。
Other instruments on the spacecraft will study the lunar subsurface and gather data on the space environment around the moon.
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