... steam leak-off valve ==> 漏汽阀 steam lift ==> 蒸汽提升器 steam lighter ==> 蒸汽动力驳船 ...
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蒸汽提升器
Steam lifter
以上为机器翻译结果，长、整句建议使用 人工翻译 。
通过将轻催化石脑油和催化循环油与水蒸汽一起注入FCC提升管反应器的上游反应区提高C3和C4烯烃产率的方法。
A process for increasing the yield of C3 and C4 olefins by injecting light cat naphtha and cat cycle oil together with steam into an upstream reaction zone of a FCC riser reactor.
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