Where a railway crosses a navigable waterway, a bridge must be built which is capable of being opened in order to allow the river or canal traffic to pass.
在铁路穿越航道，桥梁建立必需是可以被翻开，以使河流或运河流量通过。
Improving the navigable capability of waterway, it is necessary to study the changes of hydrodynamic condition and to predict the amount of sediment deposition in the dredged channel.
而疏深航道以提高通航能力，需要研究水域水动力变化并预测疏浚槽的回淤。
Article 3 the operations of domestic waterway transport are classified into the coastal transport and the inland-water transport on the basis of navigable areas.
第三条国内水路运输经营按照航行区域分为沿海运输和内河运输。
Article 3 the operations of domestic waterway transport are classified into the coastal transport and the inland-water transport on the basis of navigable areas.
第三条国内水路运输经营按照航行区域分为沿海运输和内河运输。
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