mobile surface的用法和样例：
例句
- They plan to trundle across the Martian surface searching for signs of water and life.
他们计划在火星地表移动寻找水和生命的迹象。 - To calculate rockmass and surface subsidence by using numeric analysis of rock mechanics, back analysis of displacement is used to study identification and theoretical analysis.
为应用岩石力学数值分析方法进行岩层与地表移动计算，采用位移反分析方法，进行了模型识别和理论分析研究。
