reserved channel meaning in English

保留/备用频道

Make a comprehensive view of all study results about the flood channel , a model of formation and evolution of the flood channels was proposed . according to this model , not all flood channels formed by ebb channels divided by sand spit develop toward death , some of them may be keeping the current situation or transform to the reserve channel with the change of runoff and sediment concentration from upper reach
用gis方法计算1861 - 2002年新桥水道区域的冲淤变化，可定量表达涨潮槽在不同时间尺度形成演化规律，结合涨潮槽岩芯沉积物垂向的沉积特性变化，可阐明涨潮槽的形成机理与演化过程，并提出不同种类型涨潮槽的形成演化模式。