Ecological approach to human settlement planning in small watershed gully areas on the loess plateau--With the example of Zaozigou small watershed in north Shaanxi是什么意思_Ecological approach to human settlement planning in small watershed gully areas on the loess plateau--With the example of Zaozigou small watershed in north Shaanxi在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句