求翻译：多年以来，苏丹境内的资产一直是CNPC海外石油产业王冠上的明珠。早在1997年，CNPC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CNPC按照同样优厚的条件接手。这些油田构成了CNPC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CNPC进口量的5%。是什么意思？

Over the years, the assets of the Sudan cnpc overseas oil industry's crown jewel. As early as 1997, CNPC in Sudan, the first overseas oil assets, China has become a net importer of oil just four years. The sanctions of the international community to force Chevron to abandon the discoveries in Sudan,

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

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

For many years, the assets in the Sudan has been a Pearl on the Crown of CNPC 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. The sanctions of the international community to force Chevron Cor

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