permeable stratum

• 透水层,透水岩层

permeable stratum的用法和样例：

例句

1. In order to form commercial accumulation of petroleum hydrocarbons, the oil droplets and gas bubbles must be migrated into nearby permeable beds.
   要形成具有经济价值的石油碳氢化合物聚集，油雾雾珠和气泡就得运移到附近的透水岩层中去。