The plane distribution of the structural traps is controlled by stress, tectonic distortion and faults.
构造圈闭的平面展布主要受应力作用状况、构造变形程度和断裂发育状况等因素控制。
During the statistical process of density, the probability density distribution of the rock mass structural plane in sample space is assumed as normal distribution.
在密度统计过程中，把岩体结构面样本在空间上的概率密度分布假设成正态分布。
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