This paper introduced briefly developing trend of propylene rectification technology in gas separating unit and analyzed theoretically the middle reboiler used in propylene rectification column.

简述了气分装置丙烯精馏技术的发展趋势，对丙烯精馏塔增设中间重沸器进行了理论分析。

youdao

With further understanding of gas cap reservoir recovery mechanism and the progress in technology, obstruction recovery method has become an important method for developing gas cap field.

随着对气顶油田开采机理认识的深化和工艺技术的进步，目前隔障开采已成为气顶油田开发中重要方法之一。

youdao

This paper introduces the application cases of gas membrane separation technology in petrochemical industries emphatically and analyses the developing trend of gas membrane separation technology.

着重介绍了气体膜分离技术在石化工业上的应用实例，并分析了气体膜分离技术的开发趋势。

youdao

The prime minister, opening the World Economic Forum's India summit, said the traditional big polluters will need to subsidize technology for developing countries to cope with reducing greenhouse gas emissions.

VOA: standard.2009.11.08

The bill also sets rules for building more natural-gas storage (as imports replace dwindling domestic supplies) and for developing technology to capture and sequester carbon emissions from fossil-fuel plants.

ECONOMIST: Nuclear power: The wind, the sun—and the atom | The