... 原始油层流体：original reservoir fluid 原始应力：primitive stress 原始异地生成煤：primary allochthony ...
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After the underground utility is picked, the primitive stress state of equilibrium would be destroyed, caused the rock layer to have the migration, the distortion and the destruction.
地下有用矿物被采出后,破坏了采区周围岩体内部的原始应力平衡状态,使岩层产生移动、变形和破坏。
参考来源 - 煤层群开采的地面沉陷评价研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The nearer to the foot of slope, the higher the value is. And it restores gradually to the primitive stress condition towards the inner part of the slope.
剪应力最大值出现在坡脚，其总趋势由内向外增多，愈近坡角愈高，向坡内逐渐恢复到原始应力状态。
Psychological stress can turn into physical pain and illness in a number of ways. One is the body's primitive 'fight-or-flight' mechanism.
心理压力会以多种形式转化为身体上的痛苦和疾病，人体本能的“打或跑”反应机制就是其中之一。
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