The world's longest tunnel will take shape deep beneath the Swiss Alps on Friday when a giant drilling machine clears a path for a key high speed railway through the heart of Europe.
The machine lies 100 metres below the countryside, straddling the Franco-Swiss border outside Geneva. This is where CERN, the European particle-physics laboratory, has its headquarters.
机器置于100米深的地下,跨越法国-瑞士边境止于日内瓦(欧洲粒子物理研究所的总部所在地)。
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The collider is a giant accelerator machine housed in a 27km-long (17 miles) circular tunnel under the French-Swiss border.