分析在民航总局的运价管理下的打折风波与航线联营的原因及效果，提出多舱位多等级的浮动市场价格体制的必然性；
The market price system of multi-cabin and multi-class will be a trend although there is discount disturbance corresponding to CAAC administration price system.
对于大多数可以用公路运输的货物，州际商务委员会就把与这些货物相关的铁路货运价格管理规定废除。
Regulation of freight rates by the Interstate Commerce Commission was removed for most cargoes, provided they could go by road.
公共利益尤其要求对于线路运价实行有效管理。
Specially, the public interest demanded effective regulation of rail rates.
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