V2EX longitude

Longitude

定义 Definition

经度:表示地球上某地点相对于本初子午线(0°经线,通常指格林尼治子午线)在东西方向上的角距离,范围为 0°180°E/W。常与纬度(latitude)一起用于确定地理位置。(另有“经线/纵向”的含义,但此处以地理常用义为主。)

发音 Pronunciation

/ltjud/(英); /lndtud/(美)

例句 Examples

The map shows the city's latitude and longitude.
地图标出了这座城市的纬度和经度。

To calculate the ship’s position, they recorded its longitude using precise time measurements and celestial observations.
为了计算船只的位置,他们通过精确计时和天文观测记录其经度。

词源 Etymology

longitude 源自拉丁语 longitudo,意为“长度、长的程度”,由 longus(长的)发展而来。早期用于表示“长度/延伸”,后来在地理与航海语境中专指地球表面的“东西向位置”(经度)。经度的精确测定在大航海时代尤其关键,与准确计时密切相关。

相关词 Related Words

文学作品 Literary Works

  • Gulliver’s Travels(《格列佛游记》, Jonathan Swift):常以纬度、经度等方式描写航海与岛屿位置。
  • Moby-Dick(《白鲸》, Herman Melville):航海叙事中出现经纬度与航行定位的表达。
  • Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time(《经度:一个孤独天才如何解决时代最重大的科学难题》, Dava Sobel):以“经度”为核心主题的科普传记作品。
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