Building strategic underground water-sealed oil depots is one important access to assure the safe and stable national oil storage system.
建设战略地下水封石油储备库是完善国家石油储备体系的重要途径之一。
Building strategic underground water-sealed oil depots is one important access to assure the safe and stable national oil storage system.
建设战略地下水封石油储备库是完善国家石油储备体系的重要途径之一。
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