1·Because of considering the influence of ground surface, the finite model can be used for analyzing the long period heat transfer process.
而有限长的传热模型由于考虑了地面作为传热边界对地下传热过程的影响，能够用来分析长时间的传热分析。
2·Chassis: large travel diving force, heavy king size chassis, good rigidity, adapt to multiple ground surface.
底盘：大行走驱动力，重型加长型底盘，刚性好，稳定性高，适合多种地面。
3·Strip mining is widely used as the method for protecting ground surface buildings in many coalmines in Cnina.
条带开采作为保护地面设施的有效措施在我国的很多局矿得到广泛应用。
4·For serious formation leakage, the working fluid can't carry sand column to ground surface in the process of sand washing.
由于地层漏失严重，作业冲砂施工过程中工作液无法将井筒内的砂柱携出地面。
5·Atmospheric boundary layer is influenced not only by the ground surface but also directly by the weather system of different scales.
大气边界层不仅受地面的影响，也受不同尺度大气系统的直接影响。