Objective To evaluate clinically double - balloon enteroscopy and intestinal intestinal diseases.目的评价双气囊推进式小肠镜对小肠疾病的诊断价值.Objective To evaluate clinically double - balloon enteroscopy and intestinal enteroclysis in intest...
利用泥灰岩加水热模拟实验探讨了泥灰岩的油气形成过程.Hydrocarbon - generating process of marl is discussed by hydrous pyrolysis simulation.经过现场应用,收到了较好的增产效果, 为华北油田泥灰岩储层改造措施找到了突破口.Applications have increased production, find a new approach for mudd...