综合大量事实，本文指出表土深部的厚粘土层存在着地压高、不冻结、塑性变形显著、摩擦阻力大等工程特性。
A great deal of evidence has indicated that deep-thick bedded clay has engineering properties which are high earth pressure, non-frozen, distinct plastic deformation, great lateral resistance.
金属材料发生塑性变形的阻力通常与加载的应变率有关。
The deformation resistance of most of the metallic materials is influenced by the strain rate.
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