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单词 θ1500
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the world > the universe > cosmology > science of observation > astronomical instruments > [noun] > astrolabe > label (1)
labelc1392

Astronomy and Surveying. A slender pointer that pivots about the centre of an astrolabe, quadrant, etc., and can be rotated across the face of…

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更新时间:2025/2/24 4:08:13