The wing of the plane showed signs of metal fatigue.
机翼显示出金属疲劳的迹象。
One thing that does ground old aircraft is the impending failure of their aluminium structure from metal fatigue.
让老旧飞机搁浅的一件事就是飞机铝构造因为金属疲劳产生的故障隐患。
So a tight wheel should last longer and be stiffer while a softer build can resist impacts better but will have greater chance of metal fatigue failures.
因此，一个张紧轮应持续时间更长，而被硬软建设能更好地抵御冲击，但将有更大的金属疲劳破坏的机会。
The airplane wing showed signs of metal fatigue.
机翼显出有金属疲乏的迹象。
Through-thickness cracking also can lead to fatigue or stress corrosion cracking of the base metal beneath the plating.
还会形成穿透型裂纹，造成镀层下本体金属的疲劳或应力腐蚀裂纹。
The photographs of the sweep electron microscope show that fatigue damage are caused mainly by microcracks and impurities of metal.
通过疲劳断口的电镜扫描试验，证明防爆膜的疲劳破坏是由存在于金属内部的微裂纹和杂质所引起。
The fatigue invalidation made by the kind of microcosmic and macroscopical mechanical stress concentrate 80% resulted in equipment part and metal components damage.
设备的零部件和金属构件发生的损坏，80%是由于各种微观和宏观机械应力集中所导致的疲劳失效。
The aeroplane wing showed signs of metal fatigue.
机翼显出有金属疲劳的现象。
Fatigue failure of metal structural component is a common form of structure collapse, so improving fatigue behavior of metal materials is very important for their usage.
金属构件的疲劳失效是一种常见的结构破坏形式，改善金属材料的疲劳性能对其使用性能的提高有重要意义。
High-frequency fatigue tester, which belongs to metal material tester, is used to measure the fatigue performance of drawing, compressing of metal material and its alloy in room temperature condition.
高频疲劳试验机属于金属材料试验机，是一种主要用于测定金属及其合金材料在室温状态下的拉伸、压缩或拉压交变负荷的疲劳性能试验的机器。
The application of metal ion injection technology for improving metal fatigue resistance and erosion resistance are discussed.
论述金属离子注入技术在改善材料的疲劳、耐磨性、 氧化等性能方面的应用。
Since the main failure reason of the steel rope is the fatigue of the metal, the fatigue reliability design of the crane steel rope can be executed by means of stress-strength interference model.
根据起重机钢丝绳失效主要是金属疲劳的原理，采用应力-强度干涉模型，对起重机钢丝绳进行了疲劳可靠性设计。
Test results show that type of metal powder spray has great influence on the improvement of fatigue properties by plasma spray.
疲劳试验结果表明喷涂合金粉末类型对喷涂后接头疲劳性能影响较大。
Corrosion results in decrease of metal fatigue life and overload can result in prolonging of fatigue life.
腐蚀会降低材料的疲劳寿命而超载则对疲劳寿命有增益作用。
First of all, to deal with some spraying petrol, acetone for degreasing treatment with a file, fine sandpaper, oilstone will fatigue layer and oxide layer removed to expose the metal color.
首先应对喷涂部分用汽油、丙酮进行除油处理，用锉刀、细砂纸、油石将疲劳层和氧化层除掉，使其露出金属本色。
The steel ring is the key component of metal V-belt, its main failure is fatigue rupture.
带环是金属带中的核心部件，其主要失效形式是疲劳破坏。
The main reasons of fatigue broken of spring in the condition of higher stress and the limitation of using mish metal to control the form of inclusion in spring steel have been analysed.
分析了高应力条件下弹簧疲劳断裂的主要原因以及用稀土控制弹簧钢夹杂物形态的局限性。
The effect of transformation temperature of weld metal on the residual stresses and the fatigue strength of welded joints is analyzed based on their test.
通过焊缝金属相变温度和残余应力测试以及焊接接头疲劳强度试验，分析了焊缝金属相变温度对焊接残余应力和焊接接头疲劳强度的影响规律。
The fatigue damage of metal materials has been recognized in engineering field for a long time. And the fatigue damage problem of metal structures has become more and more serious.
金属材料的疲劳损伤是工程界早已发现的问题，金属结构的疲劳破损问题正日益突出。
Some in-site vibrating test and metal fracture analysis have been done to reveal that the crack of the U-shaped bolts is fatigue failure and some reference for designer is put forward.
结合桥梁—人行道系统的现场振动测试和螺栓试样断口分析结果，指出既有桥上发生的U型螺栓破断属于疲劳破坏，并提出了改进意见。
To observe therapeutic effect of the Method of "Reinforcing earth to strengthen metal" on the treatment of respiratory muscle fatigue in COPD. Methods:1.
方法1。文献研究：通过查阅现代中、西医国内外文献，总结和评价中医药健脾法治疗COPD呼吸肌疲劳的研究现状。
The fatigue damage of the metal material often happens under the action of the dynamic load. The accumulation of fatigue damage of the metal material leads to the result of surface fatigue cracks.
金属构件常常因受到动载荷作用引起疲劳损伤，而疲劳损伤累积的结果往往导致裂纹的产生。
Calculation of crane metal structure on fatigue life may be carried out according to either stress ratio or stress amplitude in related structure.
起重机钢结构的疲劳寿命计算，可采用应力比法或应力幅法。
In the three-dimensional numerical calculations based on sheet metal hydraulic torque converter of the axial force, deformation theory, reliability and fatigue life were studied.
在三维流场数值计算的基础上对钣金型液力变矩器的轴向力、变形理论、疲劳寿命进行了研究。
Moreover, the fatigue crack growth rates of the weld metal and heat affected zone are lower than those of the base metal. Having excluded the effect of welding residual tress...
在排除焊接残余应力导致的裂纹闭合效应后，焊缝及热影响区疲劳裂纹扩展速率与基材相当。
Results indicate that the fatigue strength of welded joints is lower than that of the parent metal.
结果表明：焊接接头高周疲劳性能低于母材的疲劳性能。
Results indicate that the fatigue strength of welded joints is lower than that of the parent metal.
结果表明：焊接接头高周疲劳性能低于母材的疲劳性能。
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