疲劳

Because it is rapidly and completely broken down in the body, it is unlikely to produce morning hangover and does not cumulate.

美多眠可使消除疲劳的睡眠持续6～8小时；由于本品在体内能迅速和完全分解，因而不会产生清晨的残留作用。

A method for quickly determining the crack growth curve of offshore steel platform s is presented in the paper.

提出了一种确定海洋平台钢裂纹扩展曲线的快速方法，该方法可以综合利用以往的经验数据和当前试验数据确定表面疲劳裂纹扩展速率曲线。

It is more difficult to diagnose subclinical Cushing syndrome because patients' symptoms are non-specific, such as fatigue, obesity and hypertension.

这是比较难诊断，亚临床柯兴综合征，因为病人的症状为非特异性症状，如疲劳，肥胖和高血压。

The test means of cyclic loading between the set constant of strain seem to be more reasonable for low cycle fatigue with large strain.

对高应变状态下的低周疲劳，采用在设定的应变界限之间重复受力的试验方法似乎更加合理。

Stressed oxidation testing on C/SiC composites in dry and wet oxygen environments under cyclic and constant stress was conducted in the present study.

研究了干氧和湿氧两种气氛、疲劳和蠕变两种应力下C/SiC复合材料在1300℃的应力氧化行为。

Constant amplitude reversed cyclic load tests were simulated with the aid of software ANSYS/Fatigue, so that to obtain the used coefficient of fatigue life.

本文使用ANSYS/Fatigue软件进行了常幅偏移下的性能分析，来获取结构的疲劳寿命使用系数。

This study consists of three parts. Firstly the equivalently accelerative corrosive environment is determined through the analysis of statistic data of corrosion environment. Secondly the fatigue test is carried out under the constant amplitude cyclic loading for the specimens which are exposed in the corrosive environment for equivalent calendar time of zero year, 3 years, 8 years and 13 years. Four S-N curves with different corrosive time are obtained based on the fatigue experiment. Finally the regression method of S-N curves for experimental data is researched and a weighted least square fit is put forward in which the weigh of a group of test data is inversely proportional to the length of the confidence interval.

进行了以下几个方面的工作：(1)通过实测、统计、分析得到了当量加速环境谱；(2)完成了在当量加速环境谱下预腐蚀日历年限0年、3年、8年和13年的腐蚀试验，并进行了成组常幅疲劳试验，得到了不同预腐蚀年限下的S-N曲线；(3)进行预腐蚀后的S-N曲线的数据拟合方法的研究，提出了考虑置信区间长度影响的加权最小二乘法。

According to Lemaitre's damage evolution law and the assumption of this paper that the cyclic loading maximum tensile stress has the most contribution to the cyclic damage and assume that the stress is the maximum stress .The material parameters S which are expressed in exponential form and generalize the variation in the process of cyclic loading is exponential experience equation which provide the expectation of cyclic damage of 63Sn/37Pb material and lead it into the calculation of damaged incremental form and assume that damage keeps constant during the same cycle. The results match the experimental data. It proves that the Endochronic plasticity theorem adopt the calculation of damage environment.

根据Lemaitre损伤演化律及本文假设循环负载下拉应力在最大值附近对循环损伤的贡献最大，文中应力对各循环之损伤而言假设应力为最大拉应力，将材料参数S以指数型式表示，归纳出疲劳损伤在循环负载过程中的变化为指数型经验式，提供63Sn/37Pb材料在循环负载作用时损伤情况的预测，并引入含损伤增量式内涵时间之计算中，假设同一循环的损伤为定值，其计算结果与实验数据吻合，说明内涵时间塑性理论亦适用於损伤环境下的计算。

The fatigue crack initiation threshold from the notch root in Ni〓Al SC is dependent of crystal orientation under far field cyclic tension and cyclic compression.

在远场循环拉-拉或循环压缩作用下，Ni〓Al单晶体的缺口根部的疲劳裂纹萌生门槛值都依赖于晶体取向。

In contrast to the experimental report by Cao and Evans, we found that the crack would extend under a cyclic electric field below the coercive field by the in-situ observation through a long focal length optical microscope.

不同于Cao和Evans的实验报道(矫顽电场以下，裂纹不发生扩展)，我们在通过长焦距显微镜实时观测了循环电场的幅值低于矫顽电场时，铁电陶瓷中疲劳裂纹扩展的规律。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。