upland plain的意思|示意

It was difficult for upland crops to grow on the saline-alkali soil in the coastal plain and Liaohe river regions.

在沿海平原和辽河流域盐碱土上很难种植旱地作物。

The Houshan area, where many aeolian landforms developed widely, is located in south part of stepped upland plain of Inner Mongolia.

乌盟后山地区位于内蒙阶状高平原南侧，广泛发育多种风成地貌。