Railwaytransport has both distance and scale economy, so the railway companies always regard large scale and long distance freight transport as their objective markets.
铁路运输具有距离与规模两方面的经济性，铁路部门也一直把大批量中长途货物运输作为其目标市场。
2
This text attempt, let everybody finding out railwaytransport service contribution degree in national economy ocular from another side.
本文试图从另一个侧面让大家直观的看出铁路运输业对国民经济的贡献度。
3
The transport service of railway is a basic trade of the national economy, and a main artery of the national economy, have special function in the whole national economy.