自１９世纪７０年代初 ,至２０世纪７０年代末改革开放前的百年时间里 ,甘肃曾先后有过五次大开发的机遇 ,并都取得可观成就 ,其中产生不少甘肃乃至全国之最。这些丰厚的文化积淀 ,为当今西部大开发提供了弥足珍贵的决策借鉴和研究价值。清末甘肃近代工业的初创鸦片战争后 ,随 Since the early 1970s and up to the century before the reform and opening up in the late 1970s, Gansu Province has successively had five opportunities for major development and made remarkable achievements, with many of them making the most of Gansu and even the whole country. These rich cultural heritage have provided precious decision-making references and research values ​​for the current development of western China. After the start of the Opium War in modern industry in Gansu in the late Qing Dynasty, with