求翻译：多年以来，苏丹境内的资产一直是中石油海外石油产业王冠上的明珠。早在1997年，中石油就在苏丹获得了第一份海外石油资产，当时中国成为石油净进口国才刚刚四年时间。国际社会的制裁迫使雪佛龙公司放弃了在苏丹发现的油田，而中石油按照同样优厚的条件接手。这些油田构成了中石油在该国投资发展的根基。苏丹境内的石油产量占到中石油海外总产量的70%。2010年，苏丹共出口原油1900万吨（占国内总产量的80%），其中1250万吨（65%）销往中国，占到中国石油进口量的5%。是什么意思？

Over the years, the assets of the Sudan, PetroChina overseas oil industry's crown jewel. As early as 1997, oil in Sudan, the first overseas oil assets, China has become a net importer of oil just four years. Of international sanctions to force the company to abandon Chevron discovered oil fields in

Over the years, the assets in the Sudan has been a oil in offshore oil industry on the crown Jewels. As early as in 1997, the oil on the Sudan was the first foreign oil assets at that time, China became a net importer of oil has just 4 years time. The sanctions of the international community to forc

Since many years, within the boundaries of Sudan's property has always been on the petroleum overseas petroleum industry royal crown pearl.As early as in 1997, the petroleum on has obtained the first overseas petroleum property in Sudan, at that time China became the petroleum net import country onl

For many years, the assets in the Sudan has always been China Pearl on the Crown for the offshore oil industry. As early as 1997, CNPC in Sudan obtained its first overseas oil assets, when China became a net importer of oil just four years time. Sanctions of the international community to force Chev

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