However, the modern gas-phase process for polyethylene appears to represent an opposite trend.

然而，聚乙烯的现代气相聚合工艺则表现出相反的趋势。

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The liquid in the pipeline under certain conditions and partially vaporizes into gas state, bubble, formation of gas-liquid two-phase flow which is the process of flash.

管道中的液体在一定的条件下，部分液体气化成气体状态，产生气泡，形成气液两相流这就是闪蒸过程。

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The condensate gas phase equilibrium process takes place in the porous media of deep strata.

凝析油气相平衡过程发生在地层的多孔介质中。

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Most of these have been locked up by Dow, which developed its Insite metallocenes for solution-based polyethylene production, and by Exxon, which commercialised metallocenes for a gas-phase polyethylene process.

ECONOMIST: REPORTS: Designer plastics | The