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哈萨克斯坦与俄罗斯的合资企业——“哈俄天然气”有限责任公司的专家开始研究现有输气系统的现代化改造问题和在“中亚-中心”
Experts from the Kazakhstan-Russia joint venture “Kazakhstan Gas” Co., Ltd. began to study the modernization of the existing gas transmission system and the “Central Asia-Center”