In 1906, missionary Pev and Mrs Harry Parsons brought potato into this area.
2
云南李仙江石门坎水电站坝基岩体分级研究是该坝址工程地质问题研究的重要内容之一。
Rock masses classification and gradation for dam foundation is one of the important engineering geological issues in Lixianjiang hydropower project, Yunnan, China.