黄河河谷城市
Cities in valley of yellow river
金沙江河谷发育
development of the Jinsha River valley
拉萨河谷地区
Region of the Lhasa River valley
拉萨河下游河谷地区
the lower Lhasa river valley
密西西比河谷型铅锌矿床
Mississippi Valley-type lead-zinc deposits
山地森林-干旱河谷交错带
interlaced zone of mountain forest and arid river valley
西南干热河谷地区
southwest hot-dry valley region
狭窄河谷的拱效应
narrow valley arch action