sextant
sextant 英 [ˈsekstənt] 美 [ˈsɛkstənt]
n. 六分仪（航海定向仪器）；圆的六分之一
名词复数:sextants
- A sextant is a tool for measuring the angles between heavenly bodies — the kind found in outer space. Used as a navigational tool out at sea, it helps determine a ship's longitude and latitude.
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- n. 六分仪（航海定向仪器）；圆的六分之一
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1. sextant: Relatively useless without tables and a chronometer.
航海六分仪：没有手表和天文台表就没用了。
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2. Unlike decimal coordinates, which you can determine using a sextant and a chronometer, you cannot determine UTM coordinates without calculations.
十进制坐标可通过一个六分仪和一个记时计确定，与此不同的是，必须通过计算才能确定 UTM 坐标。
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3. I can see all the traditional signalling flags neatly stowed on shelves on the bridge—so neatly, in fact, that I suspect they might never have been used, together with the sextant, the flares.
我可以看见所有传统的信号旗整齐地装载在桥架上-如此整洁，事实上，我怀疑它们和六分仪及闪光信号一样，可能从未被用过。
- sextant (n.) instrument for determining latitude, 1620s, from Modern Latin sextans, said to have been coined c. 1600 by Danish astronomer Tycho Brahe, from Latin sextans "a sixth," from sex "six" (see six). So called because the sextans has a graduated arc equal to a sixth part of a circle.
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