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- Because change of volume reflected eroding process of watershed and surface change reflected change of topography surface, this model described relationship between watershed topograph and erosion. 由于相对体积变化反映了流域遭受侵蚀的过程，而表面积变化体现的是地形表面的变化，因而此关系模型同时表述了流域地形与侵蚀之间的关系。
- One who is skilled in topography. 地形学者精通地形学的人
- Keywords ultraprecision machining simulation surface topography surface finishing; 超精密加工;仿真;表面形貌;表面加工;
- The gas bubbled to the surface of the water. 气体变成气泡升上水面。
- The surface of the liquid gradually crusted over. 液体表面渐渐地结了一层皮。
- A breeze ruffled the surface of the lake. 一阵微风吹皱了湖面。
- A wave broke across the surface of the pool. 一个波浪从池水表面掠过。
- The calm water surface is very much like a mirror. 那平静的水面十分象一面镜子。
- A marked change in topography such as a fault or deep valley. 断层地形上的显著变化，如断层，深谷
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- He is honest only on the surface. 他只是表面诚实而已。
- A film of mucus and bacteria on a tooth surface. 齿菌斑牙齿表面一层粘液和细菌的膜
- The hard outer portion or surface area of bread. 面包皮面包的表面区域的硬皮
- Surface mail takes longer than airmail. 普通邮件比航空邮件慢。
- The surface of the lake is quite still. 湖面相当平静。
- This is a rare type of karst topography. 是非常罕见的喀斯特地貌景观。
- It's2 yuan by surface mail and3.6 yuan by air. 寄平信2元，寄航空要3元6角。
- Concerning the topography of a specific region. 某地的地质情况有关特殊地区地形学的
- Wheels won't bite on a slippery surface. 车轮打滑。
- The surface must be thoroughly clean. 表面必须彻底弄清洁。
