求翻译：延性、塑性损伤中微孔洞和微裂纹的形成和扩展使材料或构件产生大的塑性应变，最后导致塑性断裂。因此，与这类损伤相伴发生的是不可恢复的塑性变形。这类损伤的表现形式主要为微空洞，微裂纹的萌生、成长和聚合。其主要发生于金属等塑性材料。是什么意思？

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Cost of injury and rarefied micro-holes and micro-cracks in the formation and the expansion of the materials or components could result in substantial plasticity contingency, which eventually lead to plasticity fracture. Therefore, these injuries with accompanying the unrecoverable plastically defor

The ductility, in the plastic damage the micro hole and the micro crack formation and the expansion causes the material or the component has the big plastic strain, finally causes the plastic break.Therefore, has the plastic deformation with this kind of damage accompanying which may not restore.Thi

Ductility and plastic damage formation and expansion of micro-holes and micro-crack in the material or components have a large plastic strain, culminating plastic fracture. Therefore, concomitant with such damage is irreversible plastic deformation occurs. Such form of injury mainly micro-cavity, mi

Ductility and plastic damage formation and expansion of micro-holes and micro-crack in the material or components have a large plastic strain, culminating plastic fracture. Therefore, concomitant with such damage is irreversible plastic deformation occurs. Such form of injury mainly micro-cavity, mi