the angular distance of a place east or west of the Greenwich meridian, or west of the standard meridian of a celestial object, usually expressed in degrees and minutes
经度
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at a longitude of 2° W 位于西经二度
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[mass noun]
lines of longitude .经线。
【天文】 见<Bold>CELESTIAL LONGITUDE</Bold>.
"late Middle English (also denoting length and tallness): from Latin