Lower-Middle相关论文
塔里木盆地玉北地区中-下奥陶统碳酸盐岩具有良好油气勘探潜力,但储层发育的控制因素及分布规律不明制约了勘探进程。通过岩石学、......
BACKGROUND While Crohn’s disease has been studied extensively in high-income countries,its epidemiology and care in low......
The Background Features and Formation of Chemical Elements of Groundwater in the Region of the Middl
The paper deals with the background features, formation and distribution of the chemical el-ements K, Na, Ca, Mg, Si, Fe......