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单词 astrolabe
释义
as·tro·labe (ăstrə-lāb)
n.
A medieval instrument, now replaced by the sextant, that was once used to determine the altitude of the sun or other celestial bodies.

[Middle English astrelabie, from Old French astrelabe, from Medieval Latin astrolabium, from Greek astrolabon, planisphere : astro-, astro- + lambanein, lab-, to take.]
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