春秋战国时期，靖远为羌戎游牧地，保存有西周至春秋时期游牧民族的典型文化遗址——吴家川岩画。
Spring and Autumn period, Jingyuan for nomadic Qiang Rong, the preservation of Western Zhou Dynasty to the Spring and Autumn period there is the typical nomadic cultural sites - Rock Chia-chuan.
运用半连续反应装置对山西吴家坪煤和四川华荧山煤中铅在亚临界水萃取过程中的脱除率和挥发性进行了研究。
Removal and volatility of lead in WJP coal and HYS coal during sub-critical water treatment in a semi-continuous reactor were studied.
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