national economic lifeline
国民经济命脉 lifelines of the national economy; national economic lifeline 国民经济模型 model of a national economy ..
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national economic lifeline
国民经济命脉
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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As the national strategic industry, the petroleum and petrochemical industry is closely connected with the economic lifeline of a country and is protected by the country's policy.
石油石化行业作为国家的战略产业，关系着国家的经济命脉，长期以来受到国家政策的保护。
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