The close bilateral cooperation is mainly driven by oil exports from Sudan, which is among the top oil suppliers for China.

密切的双边合作驱动力主要来自苏丹的石油出口，苏丹是中国最大的石油供应者之一。

youdao

Nigeria, Africa's most populous nation and top oil producer, has struggled to hold credible elections since the end of military rule in 1999.

尼日利亚是非洲人口最多的国家，也是最大的石油生产国。该国自从1999年结束军人统治以来，一直在奋力争取举行可信的选举。

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Iraqi oil Minister Hussain al-Shahristani and other top oil officials plan to meet executives on Tuesday in Istanbul, for a road show of the fields expected to be part of the auction.

伊拉克石油部长沙赫·雷斯塔尼(Hussain al - Shahristani)等高层石油官员计划周二在伊斯坦布尔会见石油公司管理人士，届时将对预计拍卖的部分油田进行路演。

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The price of oil was voted the third top story of the year.

VOA: special.2009.01.03

The fascinating part about this layer is that it solves the problem for phospholipids about how to exist in water when half of you wants to be in oil, and that the water soluble part of the top leaflet here, of the top points up into the water, and the fatty acid chains point down.

这层膜的迷人之处在于,它解决了磷脂,如何存在于水中和油脂中的问题,水溶性的顶端部分,向上插入水中,而脂肪链则指向下

耶鲁公开课 - 生物医学工程探索课程节选

Meanwhile,on Capitol Hill, top executives of other major oil companies told lawmakers their companies would not have drilled the well the way BP did.

VOA: standard.2010.06.15

Oil industry sources quoted by Reuters news agency say Iran's top oil buyers in Europe have already started reducing purchases of Iranian crude.

BBC: Iran 'halts oil sales to France and Britain'

Back in December of 2009 Iraq invited the top Oil Companies of the world to come in and bid on the oil drilling rights.

FORBES: Is The Iraqi Dinar Worthless Paper Or Maker Of Millionaires?

Also, my frequent co-author, Samuel Foucher, and I have collaborated on a number of papers and presentations, and Sam has done some excellent mathematical modeling work on the top oil exporting countries.

FORBES: Peak Oil: The Sun Also Rises