The results show that vertical stress is equal to overburden stress at shallow level. Maximum principal stress is sub horizontal stress in the NE direction.
结果表明：显德汪煤矿垂直应力近似等于上覆岩层的自重应力，最大主应力为北东方向，且为近水平压应力。
The beginning of crack is vertical along the orientation of maximum horizontal principal stress.
初裂缝是沿着最大水平主应力方向的垂直缝。
Reinforcement type and steel plate type are the two principal forms of the vertical shearing joints of the underground diaphragm Wells by casting in place.
现浇式地下连续墙垂直接缝的二种主要抗剪形式为钢筋型、钢板型。
The expression of complex amplitude is given in reference plane vertical to the optical axis by far-field approximation when the line source and the principal axis are at any Angle.
在柱坐标下从微分波动方程出发，推导柱面光波的场分布，并利用远场近似条件导出当线光源与光轴成任意角度时，在垂直光轴方向的参考面上的复振幅表示。
Tidal pumping and vertical shearing are the principal factors leading to distinctions.
潮泵作用和垂向切变作用是造成两者差别的主要原因。
The conclusion is that the size of terrestrial stress mainly is vertical principal stress maximum and the fracture of hydraulic fracturing is vertical.
最大水平主应力方向以近东西向为主，水力压裂裂缝的延伸方向也以近东西向为主；
When the direction of tunnel axis is vertical to the maximum principal stress, the depth of BEDZ is larger than that of which the direction of tunnel axis is parallel to the maximum principal stress.
隧洞轴线垂直于最大主应力时的钻爆开挖损伤明显要大于轴线平行于最大主应力时的情况；
Deconvolution is a principal technique to compress seismic wavelet for the enhancement of vertical resolution.
反褶积是通过压缩地震子波以提高地震数据纵向（时间）分辨率的过程。
The measurement results indicate that:(1) there are 7 measurement points with the maximum horizontal principal in-situ stress more than the vertical principal stress;
测量结果表明，7个测点的最大水平主应力大于垂直主应力；
The measurement results indicate that:(1) there are 7 measurement points with the maximum horizontal principal in-situ stress more than the vertical principal stress;
测量结果表明，7个测点的最大水平主应力大于垂直主应力；
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