1) primordial pit
原(生)纹孔
2) primary crack
原生裂纹
1.
It is considered that comminution was resulted from the unstable development of primary crack in particle,and the energy consumption was inversely proportional to the length of primary crack,and the length of primary crack decreased with decreasing the particle size.
基于弹性力学和断裂力学理论，探讨了颗粒粉碎的机理，认为颗粒粉碎是原生裂纹失稳扩展的结果，得出粉碎能耗与原生裂纹长度成反比的结论，并认为原生裂纹长度随粒度减小而减小。
4) coalescent pit aperture
合生纹孔口
5) primary pore
原生孔隙
1.
The pore types of the deep reservoir are divided into three types, namely, the primary pore, secondary pore, and mixing pore.
通过对胜利油区渤南洼陷深部储层特征的研究 ,提出了深部储层孔隙类型划分方案 ,将孔隙划分为原生孔隙、次生孔隙和混生孔隙三大类 ;将裂缝划分为构造缝、重力滑移缝、异常压力缝、成岩缝、原生缝、塑性变形面、溶蚀裂缝七大类 ,把裂缝型储层提到了与孔隙型储层同等重要的位置 ,强调了泥岩裂缝型储层的重要
6) primary porosity
原生孔隙
1.
From the analysis of thin section,it shows widely growing primary porosity and complicate secondary porosity in Shaximiao Fm of Middle Jurassic,Luodai Gas Field of the West Sichuan.
早成岩A期,压实作用和石英Ⅰ级次生加大使原生孔隙度迅速降低至10%~15%左右;早成岩B期,碳酸盐胶结物和硬石膏胶结物大量出现,孔隙度丧失至不足10%;到中成岩A期,由于强酸性水的存在,开始出现Ⅱ级石英加大边和自生高岭石沉淀;中成岩B期,溶蚀作用不断加强,对孔隙改善作用明显;整个中成岩阶段,孔隙不断的消长演化,孔隙度下降到4%~9%,并最终形成低孔低渗的致密性储层。
补充资料：第一孔(原发孔)型缺损
第一孔(原发孔)型缺损
ostium defect
心房间隔在形成上发生障碍，缺损在房间隔的前下方称第一孔(原发孔)型缺损。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条