求翻译：经过近50年的积累建设和6年多的快速发展，中国石油集团已经建成了一支门类齐全、技术先进、经验丰富的石油专业化生产建设队伍，具有参与国内外各种类型油气田和工程技术服务项目的全套技术实力和技术优势，总体技术水平在国内处于领先地位，不少技术已达世界先进水平。是什么意思？

After nearly 50 years of accumulated construction and more than six years of rapid development, China Petroleum Group has built a complete range of advanced technology and experienced oil and specialized production and construction team, with participation in all types of domestic and international

After nearly 50 years of accumulation and 6 Years of rapid development, China Petroleum Group have built a support specialities, and advanced technology and rich experience of the Oil Production and Construction Corps professionalism involved in home and abroad, with oil and gas fields and various t

After the near 50 year accumulation construction and more than 6 years of fast development, the Chinese petroleum group has already completed a class completely, technological advance, the experienced petroleum specialization production construction troop, has participates in the domestic and foreig

After nearly 50 years of accumulation building and 6 years of rapid development, China Petroleum Group has built up a wide range of advanced technology, experienced oil professional production and construction team, participating in various types of oil and gas field at home and abroad and the full

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