Permain

常见例句

Oil of Wutonggou and Pingdiquan formation came from Pingdiquan group source rock of Permain by biomarker and carbon isotope correlateion.
原油碳同位素和生物标志化合物对比表明二叠系储层的稠油来自凹陷二叠系平地泉组源岩。
The two growth of quartz in sandstone of Permain system at Zhoukou depression and Tongxu uplift
周口拗陷和通许隆起二叠纪砂岩中石英的二次增生
Lower Permain
二迭纪早期