Coal field seismic prospecting in loess plateau or complicated loess topographicarea needs going on the research of crook seismic working technology along channel.
在黄土塬区或复杂的黄土地形区作煤田地震勘探工作需要进行沿沟弯线地震施工技术的研究。
2
Imitating this natural condition, Topographic green landforms were created in the shaded area.
荫蔽区域模仿自然界情形，创造了绿色地形。
3
A block of rock that forms a structural or topographic feature, such as a block of igneous of metamorphic rock within an area of mountain building, or orogeny.