With the increase of imported petroleum in China, constructing large underground petroleum storage caverns is no doubt a project with better comprehensive economic effect.
随着我国石油进口量的不断增加，建造大型地下储油洞库无疑是一种综合经济效益良好的方案。
With the increase of imported petroleum in China, constructing large underground petroleum storage caverns is no doubt a project with better comprehensive economic effect.
随着我国石油进口量的不断增加，建造大型地下储油洞库无疑是一种综合经济效益良好的方案。
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