求翻译：八达岭长城位于北京市延庆县军都山关沟古道北口。史称天下九塞之一，是万里长城的精华，在明长城中，独具代表性。该段长城地势险峻，居高临下，是明代重要的军事关隘和首都北京的重要屏障。是什么意思？

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8 Beijing Badaling Great Wall is located at Yanqing County army Hill is the Texaco Road North Exit. 9 The world history as one of the Great Wall, is the essence and 10,000 in Ming Great Wall, with a unique representation. The Great Wall rugged trappers, 1644) was an important military Salang pass an

The Badaling Great Wall is located the Beijing Yanqing County Jundu to turn off the ditch ancient road Beikou.The history called the world nine fills one, is Great Wall's essence, in bright Great Wall, alone representation.This section of Great Wall topography is precipitous, occupies a commanding p

Badaling great wall in Beijing city in yanqing County, jundushan shut along the ditch North exit. Known to history as one of the world, is the essence of the great wall, the great wall of Ming dynasty, with unique representation. The great wall the steep topography, condescending, and important mili

The Badaling Great Wall lies in honest the north end of Guangou of the mountain of Beijing Yanqing County army. Called one of the nine plugs all over the world in history, it is the quintessence of the Great Wall, in Great Wall of Ming Dynasty, representative alone. This section of terrain of the Gr