channel maintenance

• 航道维护

channel maintenance的用法和样例：

例句

1. In a period of time, the fluvial processes are getting active, which increases the movement of sediment and results in unfavorable effect on the maintenance of the channel.
   一段时期内，河床演变趋于活跃，增加了泥沙活动，对航道维护有不利影响。