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n.
- 1. (航海用的)六分仪
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- an instrument for measuring angles to a celestial body; similar to a sextant but with 45 degree calibration.
测量天体角度的仪器；类似于六分仪但是带有度的刻度。 - I…found a sextant… "Now," I said, "they take the sun through this thing."
我……找到一个六分仪。“好啦！”我说，“他们就是用这个测定太阳的高度。” - An instrument based on the principle of the sextant but employing only a45= angle, used as an aid in navigation.
八分仪以六分仪的规则为基础设计的一种仪器，但只采用45°角，用来帮助航海 - A medieval instrument, now replaced by the sextant, that was once used to determine the altitude of the sun or other celestial bodies.
星盘一种中世纪的仪器，曾用来测量太阳或其它天体的高度，现在已被六分仪取代