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1·The mantle xenoliths collected from these three localities have been described in this paner.

中国东部含幔源包体的早第三纪玄武岩已发现的有吉林双辽、河北阳原和山西繁峙。

2·The paner intrdue the application of frequency converter in improving crude oil Stabilization unit and it's operating situation.

本文简述了变频调速器在原油稳定装置技术改造过程中的应用及其运行情况。