C5 fraction separation and comprehensive utilization is an important aspect of reasonable utilization of petroleum resource.
C_5馏分的分离与综合利用是合理利用石油资源的一个重要方面。
For the petroleum enterprise, efficient exploitation and utilization of petroleum science and technology archives can provide effective services for increase in oil reserve and production.
对于石油企业来说，搞好石油科技档案的开发利用，就能为增储上产提供有效的服务。
They mainly includes the utilization of ethene in dry gas and of propene and butylene in liquified petroleum gas.
重点包括干气中乙烯的利用、液化气中丙烯和碳四的利用。
The utilization and the prepartion methods of 2,6-DMN are introduced. The separation and purification processes of 2,6-DMN from coal and petroleum tar are reviewed.
本文介绍了2 ，6 -二甲基萘的用途和制备方法；综述了从煤焦油和石油中分离提纯2 ，6 -二甲基萘工艺。
The utility model has the advantages of full utilization of natural resource to replace petroleum oil and coal and energy-saving.
本 实用新型的优点是充分利用大自然能源发电，可取代石油和煤炭，节省能源。
Qatar takes the petroleum and the natural gas as its pillar industry, gas reserves ranks the third in the world, the development and the utilization of them also rank forefront of the world.
卡塔尔以石油和天然气为其支柱产业，其中天然气储量居世界第三位，在开发和利用上也走在了世界的前列。
Qatar takes the petroleum and the natural gas as its pillar industry, gas reserves ranks the third in the world, the development and the utilization of them also rank forefront of the world.
卡塔尔以石油和天然气为其支柱产业，其中天然气储量居世界第三位，在开发和利用上也走在了世界的前列。
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