这台望远镜可用来探测星星越过子午线的确切时间。
The meridian circle telescope is used to determine The Times at which stars cross the the meridian.
星期六，这位名叫贾森·刘易斯的冒险家脚踏著木船来到了伦敦的泰晤士河，随后越过格林尼治的子午线。1994年，刘易斯就是在这个地点出发，开始了他的环球旅行。
Jason Lewis pedaled his wooden boat up the River Thames in London Saturday, before pushing it across the Meridian Line at Greenwich, where his journey began in 1994.
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