perinea

1.Chaoyanggou Oilfield has low porosity, low perinea and serious heterogeneity, with natural and induced fractures.

朝阳沟油田储层低孔、低渗,非均质性严重,存在天然裂缝和人工裂缝。

2.Objective To find out whether laparoscopic assisted was better than open abdomino-perinea l resection for low rectal adenocarcinoma.

目的评估低位直肠癌的腹腔镜助下手术是否优于传统的腹会阴联合切除术。