This paper presents a plan of annular reinforced concrete retained artificial island for oil exploration and development within shallow sea area.

针对浅海石油勘探和开发的需要，提出了围堰式钢筋混凝土人工岛的方案。

youdao

Thus, the oil is cleaned and the effective constituent of oil is retained.

因此，石油是清洁和有效成分是油留用。

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The evaluation on the retained limit strength of in service oil pipelines is a basic job ensuring safe and reliable operation of the pipelines.

在役石油管道剩余极限强度评价是为保障在役石油管道安全可靠运行的基础工作。

youdao

Tejon won the crucial backing of environmentalists in May 2008, when it agreed to put its 240, 000 undevelopable acres into a conservation land trust. (Tejon has retained the right to ranch, farm and prospect for oil on these lands and even sell large chunks, most likely to the environmentalists.) Full approval would enable Tejon to put up 26, 000 homes on the 30, 000 acres not included in the deal.

FORBES: Stocks: Land-Rich Companies

But she retained a measure spreading wealth from yet-to-be-explored oil fields which are still to be auctioned.

BBC: Rousseff vetoes part of Brazil oil royalty plan