fluvial sediment transportation

例句：

1. 1.The fluvial sediment transportation is a significant factor in the formation of riverbeds.
   河流沉积物运输是形成河床的重要因素。
2. 2.The engineers were tasked with designing a system to improve the fluvial sediment transportation efficiency.
   工程师们被指派设计一个系统以提高河流沉积物运输效率。
3. 3. The study aims to investigate the impact of human activities on the fluvial sediment transportation.
   该研究旨在调查人类活动对河流沉积物运输的影响。