主应力

This method uses the features of laser such as high-speed heating and cooling to implement scribing treatment on the oriented steel sheet surface so as to promote the generation of micro plastic deformation and high-density dislocation in its heated section, form the subcrystalline boundary, reduce its main domain wall length, and introduce residual tensile stress so obtaining the effects of refining magnetic domain and reducing iron loss.

降低硅钢片铁损的激光处理方法及装置。$该方法是利用激光快速加热和冷却的特点，对取向硅钢片表面做划线状处理，促使加热区产生微小塑性变形和高密度位错，形成亚晶界，减小主畴壁长，同时引起残余张应力，达到细化磁畴，降低铁损的效果。

Eventually, actual unstressed length of main cable is calculated.

最后就可算出主缆实际的无应力索长。

At last, the sample for determing saddle's position and the unstressed length of cable on the saddle was given.

最后给出了确定索鞍设计位置和索鞍顶部主缆无应力长度的算例。

The magnitude of bonding force between main components and size and quantity of interspaces in wood decided to great extent the additional stress decrease and increase which were caused by the change of temperature.

处理木材里主成分间结合力的大小及分子间空隙的尺寸和数量在很大程度上决定着因温度变化而产生的额外松弛及应力回复。

Secondly,the space finite element model for main arch ring of Changyang Huanglingdong Bridge is established by general FEM programme ANSYS.

利用ANSYS建立了湖北长阳黄陵洞大桥箱形主拱圈的空间有限元模型，采用应力叠加法和传统方法对裸拱形成过程进行了力学分析。

Through the calculation and analysis for additive stress of main reducing gear's fast speed shaft in three high mill of Jisteel medium plate plant,expounds that the additive stress produced in the pro cess of working of parts for rolling mill, shearer and blanking press with balance wheel to the influence of shaft's strength is not to be ignored.

通过对济钢中板厂三辊轧机主减速机高速轴的附加力的计算与分析，阐明轧机，剪切机，冲压机械等带飞轮的部件在工作过程中所产生的附加应力对轴强度的影响是不应忽视的，在设计，维护和修理时要加以注意。

3D numerical simulation of typical sidewall and crown block s is carried out for underground powerhouse of the Three Gorges Project.

运用FLAC3D软件对三峡地下电站主厂房的典型边墙和顶拱块体分别进行三维数值模拟分析，对比分析其模拟结果表明：(1)边墙块体在水平垂直厂房轴线和铅直方向上应力均表现出卸荷特征，特别是x方向。

The FEM has been used to analyze the coupling seepage field and stress field under different water pressures based on the drainage tunnel project crossing the Yangtze River at the downtown of Chongqing city. The segment's stress distribution, displacements and pore pressure distributions are calculated.

结合重庆主排水过江盾构隧道的修建，针对不同水压情况下的盾构隧道，采用有限元法对围岩及结构的渗流场和应力场进行耦合分析，获得施工期管片应力、位移及孔隙水压力分布。

And then it uses stress amplitude method to check fatigue strength and estimates fatigue life of the main girders.

在此基础上，应用应力幅法对主梁进行了疲劳强度的计算和疲劳寿命的估算。

And then it uses stress amplitude method to check fatigue strength and estimates fatigue life of the main girders.

应用应力幅法对主梁进行了疲劳强度的计算和疲劳寿命的估算。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。