The finding, from an 11-year study of 6,000 British civil servants, does not provide definitive proof that long hours cause coronary heart disease but it does show a clear link, which experts said may be due to stress. 通过11年来对6000名英国公务员的研究发现,虽没绝对证据证明长时间工作会引起冠心病,但此研究清楚地揭示了两者的联系,专家称这也许和压力有关。
The record of many decades stands as proof that our people and their Government have, in the main, understood these truths and have responded to them well, in the face of threat and stress. 在威胁和压力面前,几十年的历史雄辩地证明,总体上,我们的人民和政府很好地领悟了这些真理,很好地应对了这些矛盾。
When the material does not display a yield point, a quantity known as the proof stress is used when making design calculations. 当材料不显示屈服点时,在进行设计计算中,往往使用所谓弹性极限这一数值。
Using water proof installations, a systematic study was conducted determine the effects of water stress on the protective enzyme activities and lipid peroxidation were determined. 利用防雨旱棚,研究了水分胁迫下夏玉米根叶保护酶系活性变化及其对膜脂过氧化作用的影响。
A Synthetic Proof of Graphic Methods for the State of Stress at a Point 关于一点应力状态作图法的一种综合证明
The Convergence Proof of Initial Stress Method and Weighted Residual Method Applied to Elasto-plastic. Analysis 应用初应力法和加权残数法进行弹塑性分析的收敛性证明
Measurement of Welding Residual Stress and Proof Test Stress in Hydrocracker 加氢裂化反应器的焊接残余应力和水压试验应力测试
The Proof of Convergence in Full Stress Design of Truss under a Single Load and Some Properties of Convergent Solutions 单工况下桁架结构应力比法的收敛性证明及收敛解的若干性质
The principle, the proof of an approximate drawing method for slip-line fields and the characteristics of approximate slip-line field are presented, which lays a foundation for the computer solving of stress distributions and deformation law, especially for the computer drawing of approximate slip-line field. 给出了滑移线场近似作图法的原理、证明以及近似滑移线场的特点,为进一步利用计算机求解应力分布和变形规律,尤其是为近似滑移线的计算机绘制奠定了基础。
In the paper, based on measuring dynamic stress of spring plank by 120Km/ h proof test, the rainflow of stress counting was done. And then the stress spectra was done through simple grouping; 本文通过120Km/h环行线可靠性试验全程实测,得到弹簧托板薄弱部位动应力时间历程,对其进行雨流计数后,通过简单分组得到其应力谱;
The ratios of microhardness to proof stress are all about 3.37 in different depths of the affected layer. 喷丸影响层不同部位的显微硬度与条件屈服点之比约为3.37;
A unified synthetic proof of two graphic methods for the state of stress at a point is given. 给出了一点应力状态的两种作图解法的一个综合证明。
Proof of theoretical stress analysis of tapered bars with uniform thickness by experimental method 等厚度楔形杆应力分析的实验验证
However, several structural problems including structural earthquake resistance, wind proof design, shearing force mitigation, and temperature stress alleviation still bother the structural engineers. 由于目前没有大型渡槽的结构设计规范,一些结构问题,如结构抗震、抗风设计、剪力滞、温度应力等,还困扰着结构工程师。
The proof strength can be used to evaluate the tension-compression fatigue strength of gray cast iron, and also used as the stress level of the tension-compression fatigue test. 利用引伸计拉力试验中的规定总延伸强度可以评价灰铸铁的拉压疲劳极限,也可以利用该数值作为预计的疲劳极限,用于拉压疲劳试验应力水平的选取。
A mathematical proof on the location of maximum stress at the cross section of flanged beam by arbitrary load 任意载荷作用下工字钢截面最大应力位置的数学证明
This method not only can simplify the original proof, stress its intrinsic quality but also get the new conclusion for the finite simple group. 用这种方法,不但简化了证明过程,突出了问题的本质,还可以得出有限单群的新结论。
Using finite element software to analyzes temperature effect of overlong concrete structure on the condition of four different restrains, and the imitating results proof that the temperature stress was reduced efficaciously by setting the sliding floor, therefore alleviate the crack of the concrete structure. 对超长混凝土结构在四种不同约束状态下的温度效应进行了模拟分析,论证了在超长混凝土结构底板采用滑动摩擦处理能够有效的降低底板温度应力,缓解混凝土开裂。