经度

• 拼音: jīng dù
• 汉字拆解: 经 = lengthwise, longitude; 度 = degree, measure

含义

Longitude. The angular distance east or west from the prime meridian.

A geographical term used in navigation, cartography, and earth sciences. Paired with 纬度 (latitude) to specify locations on Earth. Measured in degrees, with the prime meridian (本初子午线) at 0 degrees.

例句

1. 北京位于东经一百一十六度左右。
2. 经度和纬度是确定地球上任何位置的基本坐标。
3. 船长根据经度变化计算出我们已经航行了多远。

用法指南

语境: geography, navigation, science

语气: technical

正确说法

• 东经/西经。(East longitude / West longitude.)
• 经度是多少？(What is the longitude?)

错误说法

• 经度很长 (Don't describe longitude as 长 (long) — it's measured in degrees, not length; use 东经XX度 format)

起源与历史

Composed of 经 (longitude; to pass through lengthwise) + 度 (degree; measure). 经 originally meant warp threads running lengthwise, hence north-south lines.

文化背景

世代: All ages

社会背景: Technical/educational contexts