... waterway dues 航道费 waterway marks 航路标志 waterway regulation 航道治理 ...
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The situations of bumping to marks in the Yangtze River downstream waterway are introduced, through analysis to the causes of which, measures for reducing bumping to marks are presented.
介绍长江下游航道标志被碰的情况，通过对被碰标志的原因分析，提出减少标志被打的措施。
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