【摘要】 航道等级的合理划分是水运可持续发展的保证。本文分析了我国内河航道现状和国标GBJ139-90中等级划分存在的问题,建议提高最低航道等级尺度,并提出了高等级航道定义。更多还原

【Abstract】 Rational grading of waterway is the guarantee for sustainable development of water transportation.Based on the analysis of the current situation of China ’ s inland waterway and problems in national standard GBJ139-90concerning waterway grading,this paper puts forward a suggestion on raising the standard of the lowest waterway grade and gives the definition of high-grade waterway.更多还原