格林尼治国际标准以英国伦敦格林威治皇家天文台为准，也就是零经度为准。
Greenwich mean time (GMT) is mean solar time at the Royal Greenwich Observatory in Greenwich, London, England, which by convention is at 0 degrees geographic longitude.
若想找个地儿开心地逛一天，没有哪家博物馆能比得上格林尼治皇家天文台。
Few museums could rival the Old Royal Observatory at Greenwich for a grand day out.
牛顿是不许别人回答“不”字的，他自封为皇家天文台的大总管，然后迫使立即出版这些数据。
Newton would not take no for an answer: he had himself appointed to the governing body of the Royal Observatory and then tried to force immediate publication of the data.
获奖名单将于9月8日宣布，获奖作品将于次日至2012年2月在格林威治皇家天文台展出，免费参观。
Winners will be announced on 8 September and will go on display the following day at the Royal Observatory, Greenwich. The exhibition is free and will run until February 2012.
显然是会情绪溢于言表的刘易斯留着胡须，神情疲惫。在他的支持者和热心人们的帮助下，他抬着自己的船穿过位于皇家天文台的格林尼治子午线。
Bearded and looking tired, a clearly emotional Lewis crossed the Greenwich Meridian line at the Royal Observatory by carrying his boat with the help of supporters and cheering well-wishers.
为了解决在海上计算经线的问题，1675年英格兰国王查理二世下令建造了皇家格林尼治天文台，同时他还悬赏了一大笔奖金，给予第一个发明出在海上也能准确计时的钟表的人。
He offered an enormous cash prize to anyone who could build a clock that would remain accurate at sea.
当初创立皇家格林尼治天文台就是为了观察星体并对其进行编目。
The Royal Greenwich Observatory was founded to observe and catalogue the stars.
当初创立皇家格林尼治天文台就是为了观察星体并对其进行编目。
The Royal Greenwich Observatory was founded to observe and catalogue the stars.
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