watershedn.流域;分水岭;转折点
watershed monitoring小流域监测
Watershed data model流域数据模型
watershed topography流域地形
watershed sanitation流域卫生
watershed protection流域保护
watershed morphology流域形态
watershed extraction流域提取
watershed hydrologic流域水文
watershed vegetation流域植被
watershed harnessing分水岭治理