英语词汇“本初子午綫”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	本初子午綫
释义	本初子午綫 běn chū zǐ wǔ xiàn经线，是计算东西经度的起点。1884年国际会议决定用通过英国格林尼治Greenwich天文台子午仪中心的经线为本初子午线。1957年后，格林尼治天文台迁移台址。1968年国际上以国际协议原点CIO作为地极原点，经度起点实际上不变。本初子午线
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