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在我国古代的冷兵器时代,遍布全国各地的关隘在军事上曾发挥过重要的作用。我国的关隘很多,比如,晋陕边界的潼关,晋冀边界的娘子关,贵州北部的娄山关,赣粤边界的梅关,河南西北部黄河南岸的函谷关,河南西部的虎牢关,山西东北部的平型关,北京西北部的居庸关,河北东北部的山海关,甘肃西部的嘉峪关,豫鄂边界的武胜关,山西北部的雁门关等,全国著名的关隘不下百座。有些虽然
In the ancient era of cold weaponry in our country, the pass that has spread all over the country has played an important role in the military. There are many passports in our country, such as Tongguan at the border between Shanxi and Shaanxi Province, Niangziguan Pass at the border of Shanxi and Hebei, Loushanguan in the north of Guizhou, Meiwan at the border of Jiangxi and Guangdong, Huanguguan at the south bank of the Yellow River in northwestern Henan, Pingxingguan in northeastern Shanxi, Juyonggong in northwestern Beijing, Shanhaiguan in northeastern Hebei, Jiayuguan in western Gansu, Wushengguan in the border between Yu and Hubei and Yanmen Pass in northern Shanxi. There are no fewer than 100 famous passports nationwide. Some though