river canalization

例句：

1. 1. The construction of the new bridge has significantly improved the canalization of the river.
   新桥的建设显著改善了河流的改道。
2. 2. Due to the canalization, the water quality in the river has improved significantly.
   由于河道改造，河水质量有显著提高。
3. 3. The government is working on a plan to further canalize the river for environmental protection.
   政府正在制定计划进一步河道改造以保护环境。