ultra low permeability

• 低渗透率

ultra low permeability的用法和样例：

例句

1. Fracture can be important reserving space and the main contributor to permeability in reservoirs.
   裂缝是低渗透储层的重要储集空间和渗透率的主要贡献者。
2. The relation curves of water phase permeability of reservoir cores and back-pressure were obtained.
   得到了裂缝性低渗透储层岩心水相渗透率随回压的变化曲线。