principal compressive stress meaning in English

主压应力

Using the angle between orientation of maximum principal compressive stress and strike of source - faults , the vertical seal and open features of source - faults in the end of yimin stage sedimentary period ( the main oil gas accumulation period ) are studied , showing that the source faults in the central area are poorly sealed and well opened in vertical direction and ant the main migration pathway of oil gas generating and expelling from the source rock of nantun formation
利用最大主应力方向与源断裂走向之间夹角大小，对贝尔凹陷布达特群源断裂在主要成藏期伊敏组沉积末期的垂向封闭与开启性进行了研究，得到了贝尔凹陷布达特群源断裂在凹陷中部垂向封闭性差，开启程度高，是南屯组源岩生成排出油气向布达特群运移的主要输导通道这一认识。