cavern oil storage 盐穴储油库

cavern cold storage 山洞冷库

storage cavern 贮藏窖

salt cavern gas storage 盐穴储气库

gas storage cavern 贮气洞室

salt cavern underground storage 地下盐穴储库

rock salt cavern gas storage 岩盐储气库

oil-gas storage cavern 油气储备库

undersea gas storage cavern 海底储气洞库