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。
夹角: included angle; intersection ...大小: big or small角大小: angular size去角大小: chamfer angle夹角: included angle; intersection angle大小: 1.(程度大小) big or small 大小高等院校十二所 twelve colleges of varying sizes; 国家不论大小, 应该一律平等。all countries,big or small,should be equal.2.(辈份高低) degree of seniority 说话没个大小 speak impolitely to elderly people3.(大人和孩子) adults and children 全家大小三口。 there are three people in the family altogether.4.(尺寸、规模、 面积等的大小) size; dimension; bulk; admeasurement; volume; scale; magnitude 它的大小和火鸡一样。 it is equal in size to a turkey. 这双鞋我穿大小正合适。 these shoes are just my sizeqrs-t夹角: qrs-t angle边夹角: contain齿夹角: bottom angle磁夹角: magnetic obliquity大夹角”: mitre钝夹角: open bevel; standing bevel夹角(边): included angle(side)夹角尺: base bar夹角法: angle offset method; angle-off set; angle-offsetmethod夹角接: mitre joint前夹角: leading angle; leadingangle八角大锤: sledge hammer w/handle八角大茴香: illicium verum地层倾角大: higher formation clination角大锹形虫: dorcus gracilicornis金角大王: qwedcxza荔枝角大: lai chi kok bridge荔枝角大桥: lai chi kok bridge三角大钢琴: acoustic grand piano; grand piano