principal direction

The influences of the angle of internal friction, the angle of wall friction to the direction of principal strain rate are analyzed.

分析了内摩擦角、壁面摩擦角对最大主应变率方向的影响。

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The maximum horizontal direction NE60~ 65 ° of principal compressive stress on Jianghan basin was given by using analytic method of measured stratigraphic dip angle in addition to borehole log data

利用钻孔测井资料并运用地层倾角测量信息分析法，给出了江汉盆地地应力最大水平主压应力方向为NE60～65°

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In this paper the writer introduces the concepts of principal and secondary direction, principal and secondary test number, and establishes the united theory of the methods of feasible directions.

本文引入主方向、次方向和主判别数、次判别数概念，建立了可行方向算法的统一理论。

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The direction of the principal stress is generally northeastward, consistent with that of the regional stress field. Nevertheless, the direction of principal stress affected by local faulting is always different from the direction of regional structural stress field near the fault.

实测结果表明：最大主应力的方向总体上与区域构造应力场的方向基本一致，呈NE向，局部地区主应力的方向受局部断裂的影响而不同于区域应力场的方向。

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At the same time, from the basic theory of mechanics of materials, particularly expatiate the material secant stiffness of the principal strain direction and the principal stress direction and the element transformation matrix; they provide the theory basis of the procedure presented in this paper.

同时由材料力学出发详细推导了主应变或者主应力方向上的材料割线刚度、单元坐标转换矩阵，为本文程序的编制提供了理论基础。

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The stress strain relationship in different principal stress load direction can be reflected in the anisotropy of tangent elastic ratio or strain increment in load direction induced by unit stress increment in load direction.

不同主应力加荷向的应力应变关系各向异性可以反映在切线弹模以及加荷向单位应力增量引起的加荷向应变增量的差异中。

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The electromagnetic expulsive force exerted on the inclusion is not remarkable when the principal axis length is long in the direction of the magnetic field and short in the direction of the electromagnetic force.

当夹杂在磁场方向的主轴长度较大，并且在电磁力方向的主轴长度较小时，夹杂所受电磁斥力不显著。

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The thrust nappe as a whole underwent Yanshanian and Himalayan compression and nappe-thrusting. In the Yanshanian period the principal compressional stress σ 1 was oriented in a 44 ° direction and the nappes was thrust northeastward with a total displacement of 26.6 km.

整个推覆构造带主要遭受了燕山期和喜马拉雅期挤压逆冲推覆作用，燕山期主压应力σ1方向为44°，由南西往北东推覆，总位移量26.6km；

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A Way of Delimiting Propagation Direction of Extraordinary Ray in the Principal Section

确定主截面内非寻常光传播方向的一种方法

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The principal chess piece, which can move one square in any direction and must be protected against checkmate.

王象棋中主要的棋子，可以向任何方向移动一个方格，但必须保护它不被将死。

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