求翻译：损伤力学是以连续介质力学和不可逆过程热力学为基础，研究在一定载荷与环境条件下固体材料及其工程构件的损伤随形变发展至最后产生破坏(性能劣化)这一变化过程的规律。岩体损伤力学是研究岩体这种材料动静态损伤特性的重要理论基础，其将反映岩体内部结构特征的损伤变量作为内变量引人本构关系，这是它的基本特点之一。岩体的宏观表现，如各向异性、不可逆的塑性变形、流变和剪胀等无一不和岩体内部的节理、裂隙等缺陷系统密切的相关，故损伤力学的出现立即引起了国内外岩石力学工作者的极大兴趣和广泛关注。是什么意思？

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Damage mechanics in a continuous media mechanics and thermodynamics is not a reversible process, based on a study load and environmental conditions, solid material and its engineering components with the deformation of the damage resulting from damage to development (performance degradation) this pr

Damage mechanics is continuum mechanics and irreversible thermodynamic basis for research in solid under certain environmental conditions of loading and material damage with the deformation and its component development to final destruction (deterioration of performance) law of the change process. R