O. A.是什么意思

用法例句

In order to improve the NGL recovery rate for some condensate gas fields, which had high pressure gas source and there was no differential pressure for utilization, this paper put forward a cryogen refrigeration-oil absorption combination process to recover NGL on the basis of cold oil absorption theory.

为了进一步提高天然气凝液装置的产品收率,本文针对凝析气田中气源压力高,无压差可利用的工况条件,应用冷油吸收原理,通过工艺流程模拟分析与研究,确定了冷剂制冷-油吸收复合凝液回收工艺原理流程。