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单词 θ1493
释义
the world > the universe > cosmology > science of observation > astronomical instruments > [noun] (34)
musterc1450

An astronomical instrument; (perhaps) a dial, a clock. Obsolete. rare.

alidadea1500

A pivoted sighting device or pointer which can be aligned against a circular scale of degrees and typically forms part of an astrolabe, plane…

Subcategories:

— angle-measuring (7)
— astrolabe (16)
— other (5)
— parts of (4)
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更新时间:2024/12/24 9:55:05