1) life variance
寿命变量
1.
This article, based on the comparision of life variances under stochastic order?convex order?concave order and expectation ,studies the relatoins among these four comparisions in the detail.
论文基于寿命变量在随机序、凸序、凹序及均值下的比较 ,较详细的研究了这几种比较间的关系以及它们对串、并联系统和卷积运算的封闭性。
2) creep life
蠕变寿命
1.
Creep tests of P91 base material and its welds have been carried out,the creep behavior of P91 studied and creep rupture strength extrapolated by the Isothermal and the L-M parameter methods,followed by creep life estimations of P91 fresh steam pipes.
对P91钢母材和焊接接头进行持久试验,研究P91钢的蠕变特性,采用等温线法和L-M参数法对持久强度进行外推,进而对P91钢制主蒸汽管道的蠕变寿命进行估算。
2.
The causes of rigidity change are concluded,and T92 steel s approximate creep life is extrapolated based on rigidity method.
针对T92铁素体钢高温时效后的硬度变化进行了详细的实验分析研究,归纳了硬度变化的原因,并结合实验数据,根据硬度法外推出T92钢的大致蠕变寿命,认为T92钢能够满足超超临界机组600～650℃温度环境下的使用要求。
3.
Multi-axial creep testing methods are generalized,and then the method of how to evaluate the creep life of high temperature components based on creep testing data is presented.
综述了多轴蠕变的试验方法,并推荐了基于试验数据评价工程结构蠕变寿命的参考应力法。
3) creep rupture life
蠕变寿命
1.
Results indicate that the spreading area of the composite solder with 5% Ag particles is largest,the wetting angle smallest,and its creep rupture life longest,which is 23 times more than one of the matrix solder at the same experimental condition.
结果表明:当Ag含量(体积分数)为5%时,复合钎料铺展面积最大,润湿角最小,钎焊接头蠕变寿命最长,比基体钎料提高23倍。
2.
Creep rupture lifetimes of Cu particle enhancement SnPb based composite solder joints and the matrix solder joints are tested under different temperatures and stresses and the creep rupture mechanism is analyzed.
测定不同应力和温度下Cu颗粒增强复合钎料及基体钎料钎焊接头蠕变寿命,分析Cu颗粒增强复合钎料及其基体钎料63Sn37Pb钎焊接头蠕变断裂机理。
3.
The creep rupture lifetimes of Ag particle enhancement SnPb based composite solder joints and matrix solder joints were respectively tested under different temperatures and stresses,and the creep rupture mechanism was analyzed.
测定了不同应力和温度下Ag颗粒增强复合钎料及基体钎料63Sn37Pb钎焊接头蠕变寿命,分析了Ag颗粒增强复合钎料及基体钎料钎焊接头蠕变断裂机理。
5) lifetime change
寿命变化
1.
It is shown that the levels of a damped Λ type atom split into six sublevels and the lifetime change.
研究了旋转电场中阻尼Λ 型原子的能级分裂和寿命变化 。
6) strain life
应变寿命
补充资料：变量与变量值
可变的数量标志和所有的统计指标称作变量。变量的数值表现称作
变量值，即标志值或指标值。变量与变量值不能误用。
变量值，即标志值或指标值。变量与变量值不能误用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条