river flow的用法和樣例：
例句
- Ideally suited to narrow canyons composed of rock, the arch dam provides an economical and efficient structure to control the stream flow.
拱壩適合於修建在岩基的峽谷中，它是一種控制河道水流經濟且有效的建築物。 - Experiment was made to simulate slow flow riverway of plain at the aim to find effect of water quality on current velocity and quality of input water.
文章利用模擬實驗開展了平原地區緩流河道中的水質變化對河道水流速度與來水水質的響應規律研究。
