裂纹

This paper analyses the causes for rust and fissure of cranes and puts forward some countermeasures.

分析了一起起重机因锈蚀而产生裂纹的起因，提出了有针对性的解决措施。

This observation has the advantage of bracelets inside the fissures, and cracks will be seen very clearly.

这样观察的好处是手镯里的裂隙、裂纹会看得非常清楚。

The blue-tak tears on bedroom walls, a water-colour sun and stick man hiding behind a fitted wardrobe, a dent in a table, a crack in a mirror, were all passing moments etched into the physical world, like voices pressed into vinyl.

卧室墙上泥胶的裂缝，水彩画的太阳，藏在固定衣柜后面的火柴人，桌子的凹痕，镜子的裂纹，这些蚀刻进物质世界里的影像，倏而出现又匆匆消逝，像压进录音带里的说话声。

This kind of damage is called Foreign object damage or simply, FOD. The main form of foreign object damage are notch, avulsion, disjunction and indentation in local regions where produce stress concentration, residual stress , shear bands as well as .

这种外物冲击损伤(Foreign object damage，简称FOD)主要表现为叶片局部区域出现缺口、撕裂、折断和凹坑等，并在局部产生应力集中、残余应力及剪切带、初始裂纹等，给撞击后的叶片寿命带来严重影响。

First, the physical models associated with dislocations and cracks are respectively converted to mixed boundary value problems in mathematics. Secondly, by using the Fourier transform, a dual integral equation for a crack and an algebraic equation for a dislocation can be derived from the boundary conditions relating with a crack and a dislocation, respectively. Solving these equations, exact analytical solutions can be obtained in terms of Bessel functions in close-form.

先把位错和裂纹的物理模型写成与它们相关的边值问题，然后，利用Fourier变换将这些边值问题化成一个对偶积分方程(对位错而言，得到一个代数方程)，求解此对偶积分方程，可以获得以Bessel函数给出的封闭形式的分析解。

The mixed boundary value problem is simplified to a pair dual integral equations using Laplace and Fourier integral transform method.

利用拉普拉斯和傅立叶变换将混合边界值问题简化为对偶积分方程，并得到裂纹尖端应力场的解析解答。

By using the Copson method, one of these equations is transformed into a Fredholm integral equation of the second kind to obtain the solution. Furthermore, the intensity factors, the total energy release rate and the mechanical strain energy release rate are obtained and compared with the classical results without considering the electric field gradient effects.

采用了Copson方法，将其中一组对偶积分方程转化为第二类Fredholm 积分方程来进行数值求解，得到了裂纹尖端的强度因子、总能量释放率和机械应变能释放率，并与经典理论中的结果进行了比较。

No evidence of fatigue crack extension was detected in the silver Memorial Bridge nor the Fremont Bridge.

在西尔费纪念桥和弗里蒙特桥都没有检查出疲劳裂纹扩展的证据。

However, the electrode material is not satisfied because of its poor corrosion resistance, small conductivity, big friability and poor heat shock resistance.

前人的研究工作中，对于这种电极材料完全按陶瓷材料考虑，采用细粉，以注浆或挤压方法成型；制成的电极材料耐腐蚀性能不理想，脆性大，抗热震性能不好，在电解应用过程中易产生裂纹。

The fracture problem can be solved by calculating the boundary value of a partial differential equation. By the methods of complex variable function and undetermined coefficients, the formulae for deflection, displacement, bending moment, torque, stress and strains near the crack tip are derived.

该断裂同题可化为求解一个偏微分方程的边值问题，借助复变函数方法和待定系数法，推出了裂纹尖端附近的挠度、位移、弯矩、扭矩、应力和应变的计算公式。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。