求翻译：作为中国境内最大的原油、天然气生产、供应商，中国石油集团业务涉及石油天然气勘探开发、炼油化工、管道运输、油气炼化产品销售、石油工程技术服务、石油机械加工制造、石油贸易等各个领域，在中国石油、天然气生产、加工和市场中占据主导地位。2008年，中国石油在美国《石油情报周刊》世界50家大石油公司综合排名中，位居第5位，在美国《财富》杂志2008年世界500强公司排名中居第25位。是什么意思？

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As China's largest crude oil and natural gas production, suppliers, and the Chinese oil Group's business, which petroleum and natural gas exploration and development pipeline, petrochemical, transportation, oil and gas refining product sales, petroleum engineering technology services, petroleum mach

Within the boundaries of achievement China the biggest crude oil, the natural gas production, the supplier, the Chinese petroleum group service involves the petroleum gas probing development, the refinery chemical industry, the pipeline transportation, the oil gas builds up the product sale, the pet

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