| 单词 | 子午线 |
| 释义 | 〔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〔hemisphere〕Either the northern or southern half of the earth as divided by the equator or the eastern or western half as divided by a meridian.（地球的）半球：被赤道分开的南半球或北半球，或被子午线分开的东半球或西半球〔meridional〕Of or relating to meridians or a meridian.子午线的：子午线的或与子午线有关的〔range〕A north-south strip of townships, each six miles square, numbered east and west from a specified meridian in a U.S. public land survey.六英里城镇分区：美国公地测量中以某条特定子午线为起点，从东向西标号，占地六平方公里的一系列南北条状城镇〔Agulhas〕A rugged headland of South Africa, the southernmost point of Africa. Its meridian, longitude 20° east, marks the division between the Atlantic and Indian oceans.厄加勒斯角：南非一块崎岖的海角，为非洲的最南端。该地东经20°的子午线是大西洋和印度洋的分界线〔zonetime〕The standard time throughout a time zone that is the actual time at the meridian on which the time zone is based.区时：通过一个时区的标准时间，是以子午线所在时间为基础的真实时间 |
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