查询词典 toe crack

A formula of the maximum crack width is given, which is based on a reasonable crack model.

在一个公道的裂缝模型的基础上，建议了钢筋混凝土受弯构件的最大裂缝宽度计算公式。

In the fourth part, by similitude of diagnosing diseases in medical practice, all available informations together with new measuring technique are collected for "sympton"of crack, with the above information a new branch of mathematics-fuzzy mathematics is utilized to judge whether there is any transverse crack in rotor shaft.

在第四部分中，借鉴医学上对疾病的诊断，总结了借助振动试验采集转子轴系裂纹信息的方法，提出了用电涡流测振仪测量转轴裂纹伩息的新方法。

This is totally different from the well known macroscopic fracture behavior, i.e., the blunting of crack tip due to significant dislocation activities around a crack tip.

这种新的破坏模式和人们以往的宏观材料破坏模式完全不同。

When sending an even electric current down the plate vertical to the crack line, the electric current was detoured near the crack tips for the existing of cracks and Joule heats was produced. The instantaneous high temperature formed the point heat source.

在通入垂直于裂纹的均匀电流作用下，由于裂纹的存在，裂纹尖端出现绕流现象，产生焦耳热，瞬时高温形成点热源。

But the concrete is non- one kind homogenizes the fragility material, under having certain temperature and humidity situation, the concrete is hardened and produced the volume out of shape, he is out of shape and inconsistent because of making up the material of the concrete, restrain from, produce initial stress each other, cause between aggregate and stone bonding surface of cement or cement produce the very small crack between the stone,These cracks are irregular, discontinuous too, under the influence of external factor, may also develop into a macroscopical crack.

但混凝土是一种非匀质脆性材料，在具有一定的温度和湿度情况下，混凝土硬化并产生体积变形，由于组成混凝土的材料其变形不一致，互相约束产生初始应力，造成在骨料与水泥石粘结面之间或水泥石本身之间产生微细裂缝，这些裂缝既不规则，也不连贯，在外界因素影响下，还可能发展成宏观裂缝。

Some typical torsion problems of a cylinder involving a straight,kinked or curvilinear crack were calculated.The obtained results for the case of straight crack...

对圆弧裂纹、曲折裂纹以及直线裂纹的典型问题进行了数值计算，并与用Gauss_Chebyshev求积法计算的直裂纹情形结果进行了比较，证明了方法的有效性和正确性。

The convection heats that is apart from to 13 meters between the well heats the oil shale retorting mine process, heat the temperature as 600°C. Adopting single crack heating to need 4 years can make the whole hot solution district attain 500°C above, the adoption double crack heating need a year and can make whole hot solution the district attain 600°Cs or so.

3在井间距为13米的对流加热油页岩干馏开采过程中，加热温度为600℃，采用单裂缝加热需要4年就可使整个热解区域达到500℃以上，采用双裂缝加热需要1年就可使整个热解区域达到600℃左右。

The test result shows that fatigue crack rate in welding line area is greater than that in parent metal when crack stress intensity factor amplitude △K is greater than 20 Mpa,but there is no more difference.

试验结果表明，在应力强度因子幅△K＞20Mpa后疲劳裂纹在焊缝区的扩展速率比在母材的大，但两者差距并不悬殊。

The object of the present paper was to study the relationship between corrosion fatigue crack growth rate da/dN and stress intensity factor amplitude ΔK of 07MnNiCrMoVDR steel by corrosion fatigue crack growth rate experiment in H2S solution. This steel is the typical material used in chemistry and oil chemistry equipment in our country. Corrosion fatigue safety assessment method of pressure vessels with defects in service could be explored and investigated.

本文研究通过对我国化工和石油化工装置中的典型材料07MnNiCrMoVDR钢在腐蚀介质H2S水溶液中疲劳裂纹扩展速率的研究，寻找其腐蚀疲劳裂纹扩展速率da/dN和应力强度因子幅值ΔK之间的关系，探索研究在役含缺陷压力容器腐蚀疲劳安全评定技术。

According to the new model and linear elastic fracture mechanics, an expression for CFCP rate, which revealed the quantitative correlation among CFCP rate, stress intensity factor amplitude, the CFCP threshold, the corrosion rate of the bare metal at the crack tip, loading frequency and the critical fracture stress of the hypothetical material elements along the crack path, was derived.

根据该模型和断裂力学原理，导出了CFCP速率的定量表达式，它揭示了CFCP速率与力学条件，裂尖表面腐蚀率、加载频率、假设的裂尖材料元临界断裂应力之间的定量关系，并能说明氢脆对CFCP率的影响规律。

When I started coding, I had problems with the ASF file writer.

当我开始编码，我曾与ASF文件作家的问题。

I know that in one of the schools the boys have risen up in the classroom and enlisted in a mass.

如果你们也和他们一样，是集体自愿的话，你们的老师将是多么地光荣啊。