On condition that we have known the true azimuth of the tunnel and determined only two false dip in the tunnel, the attitude value has gotten by simple computation.
在已知巷道掘进方位角前提下，仅现场实测两个伪倾角数值，经简单公式计算，便可得到顶板产状。
The method takes two essentia1 measures:. Improve the forward computation accuracy by making steep-dip approximation of the diffraction term equation.
该方法中主要采用两点措施：①通过衍射项方程的陡倾角近似，提高正演计算的精度；
The method takes two essentia1 measures:. Improve the forward computation accuracy by making steep-dip approximation of the diffraction term equation.
该方法中主要采用两点措施：①通过衍射项方程的陡倾角近似，提高正演计算的精度；
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