scouring and silting 中文意思是什麼
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In recent years it is more severe because of temperature changes, mankind activities, scouring and silting. the special geographical position, hydrometeorological condition, river course characteristics are main reasons for ice flood
由於近幾年來氣溫的變化、人類活動、河床沖淤等流域環境的變化，使得凌汛的威脅不僅依然存在，而且發生冰害的河段有所增多，影響范圍隨之擴大。 -
The characteristic of bed regulating is that the width and area of main channel and medium flowing channel increased greatly during the sustained silting period and decreased during scouring period
河道調整特點為持續沖刷時期主槽、中水河槽的河寬、面積都明顯增大，持續淤積時期則減小。 -
Based on the topographic features and data of sediment particle size of bed load at the fluctuating backwater reach of liujiaxia reservoir, the streamwise variation and variation process of median diameter of bed load during silting and scouring periods of the fluctuating backwater reach are analyzed, and it can be seen that the turning point for the sediment diameter variation from coarse to fine is located at the outlet of shigou gorge of the fluctuating backwater reach
摘要根據劉家峽水庫變動回水區的河段地形特徵和歷年河床質泥沙粒徑級配資料，分析了變動回水區河段淤積和沖刷時，河床質泥沙中值粒徑的沿程變化和歷年河床質泥沙中值粒徑變化過程，並指出粒徑分佈由粗變細的轉折點在變動回水區寺溝峽峽口處。 -
Because the channel bed was adjusted by scouring and silting in long - term, the required period to reach basically equilibrium was predicted based on the typical and assemble hydrographic data in long series after the building of lijia flume dam
應用李家峽建壩后典型水文年長系列的組合資料，預報了河床經長期沖淤調整后達到基本平衡需要的時間。
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