railway transportation economy的意思|示意

But the railway transportation system is a complex dynamic system affected by many factors in which the most important influence factor is national economy macro-environment.

但是，铁路运输作为一个复杂的动态系统，其运行受到多种因素共同作用，其中最显著的影响来自国民经济宏观环境。

Calculating the demand flexibility of the industry, the result shows that there is great demand of railway transportation industry, there is possibility that the industry has scale economy.

利用替代计算的方法计算铁路需求弹性，证明铁路运输产业存在着巨大的市场需求，该产业存在规模经济的可能性。

Railway transportation system is a complex system, and it is greatly influenced by national economy.

铁路运输是一个复杂的系统，国民经济对其有巨大影响。

Security in railway transportation economy is the foundation of national economy security.

铁路运输经济安全是国民经济安全的基础。

The railway is the great artery of the national economy, takes important part in the transportation of our country, but the debris flow seriously affects its normal operation and the traffic safety.

铁路是国民经济的大动脉，在交通运输中起着重要的作用，而泥石流严重影响铁路的正常运营和行车安全。

One of the important parameters for the benefit analysis on railway construction projects in national economy system is the Shadow Prices of the Products from railway goods transportation (SPPR).

铁路货运产出物影子价格是分析研究铁路建设项目国民经济效益的一个重要参数。