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单词 本初子午线
释义 〔Greenwich〕[grĕnʹĭch, grĭnʹĭj] A borough of Greater London in southeast England on the Thames River. It is the site of the original Royal Observatory, through which passes the prime meridian, or longitude 0=.[grĕnʹĭch, grĭnʹĭj] 格林威治:英格兰东南部的一个市镇,位于大伦敦地区,在泰晤士河上,为原皇家观象台所在地。本初子午线即0°经线穿过此地〔longitude〕Angular distance on the earth's surface, measured east or west from the prime meridian at Greenwich, England, to the meridian passing through a position, expressed in degrees (or hours), minutes, and seconds.经线:地球表面的成角距离,从英国格林尼治的本初子午线向东或向西至经过某一点的子午线计量,以度(或小时)、分和秒表示
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