| 1. | Geomorphology deals with the origin of landscapes and changes in them .
地貌学研究地形的成因及其变化。 |
| 2. | The situation may be further complicated by the effect of rain and of irregularities in the terrain .
雨的影响以及复杂地形的影响等都可能使情况更加复杂。 |
| 3. | Volcanic activity has been responsible for large chunks of surface morphology in the western states, alaska, and hawaii .
火山活动是形成美国西部各州，阿拉斯加州和夏威夷州大片地形的主要原因。 |
| 4. | The names of the various lunar formations and lunar landscapes mostly date back to the early history of visual lunar observation .
各种月面结构物和地形的名称，大都起源于月球目测观测史的早期。 |
| 5. | The vertical extent of this layer in strong winds depends mainly on the roughness of the underlying terrain, but is usually many hundreds of feet .
强风产生的该层厚度主要与地形的粗糙程度有关，通常有好几百英尺。 |
| 6. | Dynamic creation of 3d terrain and spatial analysis
三维地形的动态生成及空间分析 |
| 7. | Implementation of the simulated terrain of 3d based on opengl
的三维模拟地形的实现 |
| 8. | Improved lod visual quality for landscape
增进地形的lod视觉效果的品质。 |
| 9. | The terrain visualization based on texture mapping technology
基于分形理论的微地形的重建 |
| 10. | Smoothing approach to digital terrain for low altitude penetration
低空突防用数字地形的平滑处理 |
