对其进行随机化处理，得到控制强度退化过程的随机微分方程。
A stochastic differential equation, which controls strength degradation, is obtained from the model randomized by Markov process.
在研究疲劳过程中材料强度退化规律的基础上，建立了一个强度退化模型。
Based on the study of strength degradation of material in the fatigue process, a strength degradation model is proposed.
强度退化时，可靠度随时间降低较为明显，失效率具有“浴盆”曲线的特征。
When strength degenerates, reliability decreases with time more obviously, and the failure rate has the feature of a bathtub curve.
该测试方法规定了曝露在氙灯辐射、湿气和热量中的土工布拉伸强度退化的测定。
This practice covers three types of laboratory weathering exposure procedures for evaluating the effect of actinic radiation, heat, and moisture on sealants.
该测试方法规定了曝露在氙灯辐射、湿气和热量中的土工布拉伸强度退化的测定。
This test method provides the general principles and procedures which are currently in use for determining the colorfastness to light of textile materials.
该平均退化的图(100)然后用于产生一个或多个使强度退化与电特性相关的图。
This map of mean degradation (100) is then used to generate one or more maps linking the strength degradation and electrical characteristic.
静态效应只影响最终断裂条件，而动态效应影响疲劳过程中的损伤演化规律和强度退化速率。
The static effect affects only ultimate fracture condition (the critical residual strength), while the dynamic effect affects damage evolution and residual strength degradation rate.
采用强度退化率和应变能损失率为损伤指标，对不同腐蚀程度混凝土力学性能的退化进行分析。
The strength degradation ratio and strain energy loss were selected as damage indexes to analyze the deterioration law of the mechanical properties of concrete in different co.
从疲劳过程本质上是材料静强度不断退化的过程的观点出发，建立了一个非线性的、连续的强度退化模型。
A nonlinear and continuous strength degradation model is presented from the view point that fatigue damage process is the process during which material static strength degrades constantly.
元谋干热河谷生态系统退化严重，其中强度退化和极强度退化面积占到了元谋干热河谷区总面积的46.7％。
There is grievous ecosystem degradation in Yuanmou Dry-hot Valley. Thepercentage of severe degraded and the extremely severe degraded area account for 46.7% of the whole Dry-hot Valley area.
超细防气窜水泥浆体系具有防气窜、低密度、低失水、抗水泥石高温强度退化等优点，适用于超深油气井注水泥作业。
This cement slurry provides good properties such as low density, low filtration, gas channeling prevention and stable compressive strength at high temperature.
森林生态系统退化的要害因素是林业开发强度。
The crucial factor that silvan ecosystem degrades is forestry development intensity.
结果表明，土地退化的主要原因是近年持续干旱少雨，土地利用的强度过大，以及在干旱季节里没有适当的防护措施等。
The results show that the major reason for the land degradation is constant aridity such as shortage of rain, excessive use of land, and shortage of protection measures in dry seasons.
杂草入侵的种类和数量取决于放牧强度，在极度退化阶段的杂草入侵种类和数量最多。
The variety and quantity of invasive weeds depend primarily on grazing intensity and are greatest in the extreme degradation stage.
研究表明，即使强度不退化，零件的可靠度和失效率也会随时间逐渐降低；
The result shows that even without strength degeneration, the reliability and failure rate of components decrease with time.
本文所建立的模型主要考虑了混凝土强度随时间的退化规律，其成果可用于大面积普查既有建筑的抗震性能。
The model in this paper mainly considers the degradation of concrete strength with time rules, the results can be used to survey a large area of the seismic performance of existing buildings.
不合理人类活动是草地退化的主要驱动因素，决定了自然条件基本相同地区的草地退化强度的空间分异。
Irrational human activities, which decide the spatial distribution of grassland degradation intensity under the similar natural conditions, are the main driving factors of grassland degradation.
固定沙丘植物群落退化严重，需要加强保护，控制放牧强度，防止沙丘活化。
The communities of these sand dune-fixed plants suffer severe degeneration and thus need enhanced protection, grazing control and prevention of sand dunes from becoming mobile.
骨矿密度的降低与骨微结构的退化都会导致骨强度的下降，从而引发骨质疏松。
Osteoporosis is characterized by low bone strength, which results from both low bone mass and deteriorated bone microstructure.
高寒草甸退化后鹅绒委陵菜的匍匐茎增多，分支强度加大。
The genet and ramet of P. anserina at the non-degraded alpine meadow were higher than those at the degraded alpine meadow.
利用船体梁强度的单调退化特性，确定在设计寿命内船体强度的最小值。
Using the property of the monotonic degradation of the ship hull strength with time, the minimum value of the ship hull strength in the design lifetime can be easily determined.
很少有关于直接测定强度耕作侵蚀引起土壤退化过程的报道。
Few direct measurements have conducted to investigate the dynamic process of soil degradation as affected by intensive tillage at the field level.
结论去负荷导致骨显微结构退化，骨局部因子含量改变，骨强度和骨量减少。
Conclusion Hindlimb unloading may lead to regression of bone microstructure, change of bone local growth factor content, reduction of bone biomechanical properties and bone content.
将这一记录材料性能信息的损伤指标带入材料各自的恢复力模型以考虑产生损伤后材料的强度和刚度退化。
Then, the damage index recording the material's behavior is integrated into restoring force model of reinforcement and concrete respectively.
但是在湍流强度较强的情形下，相干合成远场光束质量退化致非相干合成的情形，与激光阵列的紧凑度和激光波长无关。
In strong turbulent atmosphere, the far-field beam quality degrades into the incoherent combining case without any relationship with the fill factor and laser wavelength.
因环境退化导致村民劳动强度增加（土地生产力下降，劳动时间延长）为决定贫困的重要因素；
Increasing of villager's labor intensity (land productivity descent, labor time extension) caused by environment degradation is the important factor to cause the poverty;
因环境退化导致村民劳动强度增加（土地生产力下降，劳动时间延长）为决定贫困的重要因素；
Increasing of villager's labor intensity (land productivity descent, labor time extension) caused by environment degradation is the important factor to cause the poverty;
应用推荐