热效应是聚合物劣化中的一个主要因素。
Thermal effects are a major factor in polymer deterioration.
分析了混凝土冻融循环劣化新的原因和机理。
A new interpretation of freeze-thaw deterioration of concrete is proposed.
使用蜡来抑制臭氧劣化可追溯到1881年。
The use of wax to inhibit ozone deterioration probably goes back to 1881.
使用蜡来抑制臭氧劣化可追溯到1881年。
The use of wax to inhibit ozone deterioration probably goes back to 1881 .
劣化绝缘子直接威胁着电力系统的安全运行。
The faulty insulator may harm the safe operation of the electric power system.
若不考虑刚度劣化，理论结果可蜕化为以前的结果。
Present analytical solutions can be simplified as earlier results without the degraded stiffness.
录音时，环境噪声和回响之类的干扰使录音质量劣化。
In sound recording, interference, such as ambient noise and reverberation, degrade the quality.
使用寿命量测和阻值劣化随时间变化的关系来描述这现象。
Lifetime measurement and resistance degradation as a function of time were used to describe this phenomenon.
介绍了建筑物外墙涂层劣化的主要表现、原因及防治对策。
Main features, causations and corresponding countermeasures of deterioration of paint film for exterior wall are described.
GIS是电力系统重要设备之一，其主要故障是内部绝缘劣化。
GIS is one of the important equipment of power system, its main trouble is inside insulating degradation.
由于不对准会劣化电气性能，所以应该避免匹配不同类型的连接器。
Since misalignment degrades electrical performance, mating different types of connectors should be avoided.
提出了一类基于半马氏决策过程的劣化失效系统检测与维修优化模型。
The optimal model of inspection and maintenance for the deteriorating system is presented with the semi-Markov decision process.
这个模型能够反映节理面的损伤弱化，扩容和弹性刚度劣化等复杂特性。
These models can reflect the behaviours of damage softening, elastic stiffness degradation and shear dilatancy.
草原退化就是指草地植物数量减少、质量变坏以及生境条件劣化的草地。
Grassland deterioration results in reduction of number of plant species, worsening of forage quality and ecological conditions of the grassland.
研究表明，鲢鱼肌肉中的内源组织蛋白酶在鱼糜凝胶劣化中起重要作用。
Research made known, endogenous cathepsin in the silver carp muscle took the significant action in surimi morori.
模拟信号往往会逐渐劣化，数字信号不同，它丢失数据后，画面会突然静止。
Unlike analogue signals, which tend to degrade gradually when digital signals drop data, the picture can freeze abruptly.
耐热耐负荷性能良好。防止油品劣化，其长寿命性能，减少维护保养费用。
Heat resistance, good load performance. Prevent oil deterioration, the long life performance, reduce maintenance cost.
作者分析了其劣化的原因、过程、产物以及其理化指标随里程的变化规律。
The deterioration causes, process, products, and the change law of physicochemical index along with the mileage have been analyzed.
库区土壤退化类型有贫养分化、贫微生物化、结构劣化、碱化和严重干旱化。
The main types of soil degradation were of poor nutrients, poor microorganism, bad structure, basification and heavy drought.
通过正交试验分析了温度、水分、金属杂质三因素对抗燃油劣化速度的影响。
Three deterioration factors of fire resistant hydraulic oil, temperature, water content and metal impurity were studied.
能够造成聚合物劣化的生物体很多，如细菌、真菌、海生动物和各种蛀虫等。
Organisms that cause polymer deterioration include bacteria, fungi, Marine animals, and borers of various types.
基于催化剂高温失活机理，分析了不同快速老化方法对催化剂劣化强度的影响。
Based on the mechanism of catalyst deactivation at high temperature, the effect of accelerated aging method on deactivation was studied.
如果切换电流太高，造成的温度升高和接触电弧将会劣化继电器并缩短接触寿命。
If the switched current is too high, the resulting temperature increase and contact arcing will degrade the relay and shorten the contact life.
概述了目前关于混凝土在疲劳荷载与环境因素耦合作用下的损伤劣化规律的研究。
Recent studies on the damage and deterioration of concrete experiencing fatigue load and environmental effects are summarized.
磨损是水泥混凝土路面特有的劣化现象，也是混凝土耐久性研究的一个重要方面。
The abrasion is a particular manner on destruction of concrete pavement and also is an important aspect at concrete durability research.
考虑刚度劣化后，剪切带的弹性应变由弹性剪切模量、损伤变量及残余剪切模量确定。
Elastic shear strain in shear band was dependent on shear elastic modulus, damage variable and residual shear modulus.
干湿循环是导致自然气候环境条件中钢筋混凝土结构耐久性劣化最主要的影响因素之一。
Wet-dry cycling condition is one of the most primary factors leading to the durability deterioration of reinforced concrete structures in the natural climate.
对于特定的信号类型，例如低电平或高频率，则不宜使用模拟背板，以避免造成信号劣化。
For certain signal types, such as low level or high frequency, the analog backplane should not be used to avoid possible signal degradation.
对于特定的信号类型，例如低电平或高频率，则不宜使用模拟背板，以避免造成信号劣化。
For certain signal types, such as low level or high frequency, the analog backplane should not be used to avoid possible signal degradation.
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