The appraisal of inland river navigation needs some reasonable and viable methods.

内河航运的综合评价需要借助科学合理、切实可行的评价方法.

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The research of the appraisal of inland river navigation in our country is less by far.

到目前为止,国内关于内河航运的综合评价方面的研究还很少.

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The quality of river seafarers training defines the safety and development of the river navigation.

内河船员培训质量的高低,决定着内河航运的安全和发展.

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