He strolled along the Huangshui, observing the various topographical features in his field of vision.
The results show that the resources of leguminous plants are very scarce, and the growth of rhizobium is related to special ecological condition and topographical features.
"This is a first-level terrace, see?" he said, analyzing the topographical features for the girl.
Excessive heat and unusual topographical features make the Turpan Basin the locale of many interesting happenings.