elastic foundation的用法和样例：
例句
- This essay analyzes what causes the crack and calculates according to the elastic ground frame work.
摘要对裂缝的原因进行分析并按弹性地基框架进行计算。 - The main object of this paper is to investigate the natural frequencies and model shapes offree vibrations of shallow spherical shells on the two-parameter elastic foundation.
本文研究双参数弹性地基上扁球壳的自由振动频率和振型，推导了计及地基惯性力影响的扁壳自由振动控制方程。
