Before earthquakes, the sources of precursors could be very complicated. They might be produced by plastic creep or can attribute to liquids but not crisp fracture in most cases.
在地震前，产生前兆的源非常复杂，大多数情况下可能并非脆性破裂，而是塑性蠕滑或者有流体的参与。
Special instances of plastic flow are cold flow, which occurs in vulcanized rubber after low stress has been continuously applied for a long time, and creep of metals.
塑性流动的特殊情况是冷变形，发生在硫化橡胶长时间连续承受低应力时以及金属蠕变时。
Then, constitutive equations are written for plastic, creep and fatigue damage phenomena.
从而建立了塑性、蠕变和疲劳损伤现象的本构方程。
When the load is removed, the elastic portion of the strain is recovered, but the plastic part (slip and creep) remains as permanent set.
当荷载被移走时，应变的弹性部分恢复，但塑性应变部分(滑移和徐变)却会永久呆留。
The plastic deformation which is changed with time slowly is named room temperature creep.
这个变形是随时间而缓慢变化的，这个缓慢变化的塑性变形就是蠕变变形。
Combine with the creep experimental results, the three methods for measure plastic percentage elongation of creep are studied and analysed.
结合蠕变试验结果，研究和分析了三种测定蠕变塑性伸长率的方法。
The advantage of this method consists in the fact that neither a protective layer nor creep properties are necessary and that question about clastic or plastic deformation can be avoided.
它的优点在于不必给试样单面施加抗氧化涂层，不需要研究材料的蠕变性质，也不必讨论试样的形变属于弹性形变还是属于塑性形变。
The main reason of casing failure in most oilfields is the plastic flow in salt rock, gypsolyte and shale due to creep.
我国大部分油田套管损坏的原因主要是岩盐层、膏岩层、泥岩层等由于蠕变产生的塑性流动而挤坏套管的。
Plastic deformation and creep are highly undesirable, resilience is favourable.
形变和蠕变是很不利的，回弹性则是有利的。
The experimental and research results indicate that non-elasticity strain associate with time in nature according to constitutive equations of the classical elastic-plastic and creep theory.
实验和研究表明：基于经典弹塑性及蠕变理论的本构方程，非弹性应变在高温下其本质上是时间相关的。
The total strain is thus made up of elastic strain, possibly combined with plastic strain that results from slip, creep, or both.
这样，应变包含了弹性应变、滑移导致的塑性应变，徐变或I?两者皆有。
The color and creep behavior of wood-plastic composite decking boards under the dry and wet environment were tested.
对放置在干湿环境中的塑木地板进行材色和蠕变性能研究。
It also introduced all-plastic fan structure and technical measures for reducing creep and stress relaxation.
介绍了全塑风扇的结构和减少蠕变、应力松弛等技术措施。
C. The invention can resist corrosion and high temperature with wider working temperature and less creep deformation without plastic deformation after working long time.
耐腐蚀、耐高温，工作温度范围宽、蠕变小，长期工作无塑性变形。
C. The invention can resist corrosion and high temperature with wider working temperature and less creep deformation without plastic deformation after working long time.
耐腐蚀、耐高温，工作温度范围宽、蠕变小，长期工作无塑性变形。
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