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uqolo lwesibhakabhaka
sky ridge
最后更新: 2014-08-20
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sisixhobo esasisetyenziswa kudala ukujonga iinkwenkwezi nakuqhutyo esineeringi ezimele iizangqa ezinkulu zonxinzelelo lwesibhakabhaka
former astronomical and navigational instrument consisting of rings that represented great circles of the celestial sphere.
最后更新: 2018-02-15
使用频率: 1
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