主应力

In DCS, configuration is used to accomplish the on-line calculation of main stress of the orifice of the drums central downcomer. In MIS, the client/server structure based on the database is adopted. The program in server pretreats the data from DCS and sends them to the database, while the programs in client accomplished the final treatment and displays the result

在DCS侧，通过组态的方法，在不增加新测点的前提下实现了汽包集中下降管管孔处主应力的在线计算；在MIS侧，采用基于数据库的客户机/服务器结构，服务器端程序对从DCS系统来的数据进行初步的处理并存储在ORACLE数据库中，客户机端程序完成数据的最终处理及结果的显示

Fricative material, non-linear, generalized strength theory, twin shear uniform strength theory, intermediate principal stress, hydrostatic stress.

摩擦材料；非线性；广义强度理论；双剪统一强度理论；中主应力；静水压力

In vertical direction, the vertical stress estimated by AE Kaiser effect tests is 7.7 MPa. The lithostatic pressure at the depth of 294m in granodiorite rockmass is 7.9 MPa.

在垂直方向，利用声发射Kaiser效应估计的垂直主应力为7.7MPa；在294m岩体静岩压力为7.9MPa；两者基本相同。

Analyses of loci in the π plane and meridian line s show that the parabolic and hyperbolic type failure envelopes have no influences on the shape of the.

对改进式所作的π平面极限线和子午线分析表明，采用抛物线和双曲线形强度包络线基本上不会改变原准则在π平面上的极限线形状，但子午线由直线改为曲线，极限面在主应力空间内分别为抛物面和双曲面，其锥顶距坐标原点也比采用线性强度包络线的要小。

The soil cutting experiment indicates that the interior friction angle and the shear intensity of soil is reduced;and the maximum principal stress is decreased due to the vibration load;it induces the decrease of digging resistance.

从理论上研究了振动掘削岩土的减阻机理，土壤剪切试验结果表明，振动载荷能够使土壤的内摩擦角变小、抗剪强度下降、最大主应力值减小，从而导致挖掘阻力降低；对土壤在静态载荷和振动载荷作用下的失效过程进行了对比仿真实验研究，可知土壤在振动加载的条件下强度显著下降，并提前于相同条件的静态加载而破坏，同时跟踪X方向的载荷发现，振动掘削最大掘削阻力可降低50%。

The key to this yield criterion is that the concept of internal friction angle which used in soil mechanics has been introduced to infer the relationships among poisson ratio, internal friction angle and relative density.

并且在Miss屈服准则的基础上论证了粉末体屈服准则在主应力空间，为一个回转椭球体。

For proving the method which is used to identify isochromatic fringe orders, the experimental model is devised when stress wave is reflected at the free boundary of the hole.

过去研究主要依靠动光弹进行，获得的数据是主应力差的资料，目前其判读是以Durelli〔1〕的研究基础发展而来的，随后朱振海〔2

Isoclinic angle information of whole-field first principal-stress direction can be analyzed and obtained by two rules of arctan calculation.

根据求解反正切运算的两种规则，分析并获得反映第一主应力方向的等倾角信息。

The stable growth of cracks in a brittle materialwith three mutually perpendicular families of cracks under proportional tensile loadsin the three principal directions is studied.

研究了含三相正交分布微裂纹的准脆性材料在三个主应力方向比例加载下的稳定扩展的规律。

Moreover, with the tectonic adjusting under the NE-SW main compress stress, brand new N-S, NNW sub-faults are created.

此外在推覆构造主应力下，构造调整产生了新生的南北向、北北西向次级断裂。

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。