V2EX azimuth

Azimuth

定义 Definition

azimuth(方位角):在天文学、导航、测量等领域中,从某个参考方向(通常为正北)沿水平面顺时针量到目标方向的角度,范围通常为 0°360°。也可泛指“方向角/方位”。

发音 Pronunciation

/zmθ/

例句 Examples

The lighthouse is at an azimuth of 120 degrees from here.
灯塔从这里看的方位角是120度。

Using a compass and GPS, the surveyor calculated the azimuth to align the new road with the planned route.
测量员使用指南针和GPS计算方位角,以便让新道路与规划路线对齐。

词源 Etymology

该词经由中古法语与中世纪拉丁语传入英语,源头来自阿拉伯语 as-sumūt(意为“道路、方向”,是 sumt“方向/路径”的复数形式)。它进入西方科学语境后,逐渐固定为天文学与测量学中的“方位角”术语。

相关词 Related Words

文学作品 Literary Works

  • A Treatise on Navigation(约翰汉密尔顿摩尔 John Hamilton Moore)
  • The American Practical Navigator(内森尼尔鲍迪奇 Nathaniel Bowditch)
  • The Nautical Almanac and Astronomical Ephemeris(英国航海历书,长期出版物)
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