Low - grade petroleum reserves has a large proportion in the total petroleum resources in China.

低品位 石油储量在中国石油资源总量中占有很大的比重.

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The pre - Jurassic is the important sequence for replacement of petroleum resources in Tuha basin.

前侏罗系是吐哈盆地重要的油气资源接替层系.

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The petroleum security is equal to the security problems of the external petroleum resources supplies.

石油安全是指外部石油资源供应安全问题.

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With the abundant petroleum resources, Iraq boasts a great potential in development of petroleum industry.

伊拉克拥有丰富的石油资源, 石油工业的发展潜力巨大,对世界石油市场也有着重大的影响力.

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