如果没有贺兰山,北方民族在史前时期以岩画记载生活与历史的平台就缺失了重要的一块;如果没有贺兰山,匈奴时期的秦始皇政权会因为失去北方的天然屏障而变得更加短命,西汉政权的生命周期同样会“缩水”;如果没有贺兰山,中国北方古代的盐业基地和现代煤业基地会少去一块;如果没有贺兰山…… Without Helan Mountain, the northern nation lost its important piece of life and history with petroglyphs in prehistoric times. Without Helan Mountain, the Qin Shi Huang regime in the Huns period would become even more short-lived due to the loss of the natural barrier to the north. The life of the Western Han Dynasty The same cycle will “shrink ”; if there is no Helan Mountain, northern China ancient salt base and modern coal industry base will go to less; if there is no Helan Mountain ...