C5 fraction separation and comprehensive utilization is an important aspect of reasonable utilizationofpetroleum 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。
2
For the petroleum enterprise, efficient exploitation and utilizationofpetroleum 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。
3
They mainly includes the utilizationof ethene in dry gas and of propene and butylene in liquified petroleum gas.