长期以来，传统工业企业是国家经济命脉的支柱。
For a long time the traditional industrial enterprises have been the pillar of the national economics lifeline.
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。
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.
铁路企业作为关系国家基础设施和国民经济命脉的重要企业，在经济社会中发挥着重要的基础性作用。
Railway business, as the important enterprises which concerns national infrastructure and national economy, plays an important role in the foundation of economic society.
我们应该注意到与英国经济命脉息息相关的规模宏大的银行，西班牙高额的企业债务：在过去的十年内，这两个国家就曾经见证了总体债务波动最大的时刻。
Note the huge size of Britain's Banks relative to its economy, and the high level of Spanish corporate debt: these two countries saw the steepest rises in overall debt levels over the past decade.
国家关键基础设施的安全问题关系到国家的稳定与经济命脉。
The safety of the critical infrastructure concern of the stability of the nation and the development of a countrys economy.
铁路运输安全关系着国家的经济命脉，而机车故障诊断系统是保障列车安全运行的重要组成部分。
The safety of railway transportation is relative to national economic vitals. Fault diagnosis system is an important part to ensure the safety running of the locomotive.
铁路运输安全关系着国家的经济命脉，而机车故障诊断系统是保障列车安全运行的重要组成部分。
The safety of railway transportation is relative to national economic vitals. Fault diagnosis system is an important part to ensure the safety running of the locomotive.
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