bed sediment discharge 中文意思是什麼
bed sediment discharge
解釋
底質輸移率-
Based on the analyses of the flow and sediment characteristics and evolution trend of the river bed of the fuling reach in the yangtze river before and after the impoundment of the three gorges reservoir, the water level, velocity variation and influenced range in the fuling reach before and fifty years after the operation of the three gorges reservoir with the construction of the fuling dock and four discharge combinations are calculated by using a two - dimensional flow mathematic model
摘要在分析長江涪陵段的水沙特性和三峽水庫蓄水前後該河段河床演變趨勢的基礎上，運用二維水流數學模型，分析了4種流量組合情況下在三峽水庫運用前和運用50年，涪陵港區碼頭修建前後的水位、流速變化及其影響范圍。 -
In the canal with sand moving balance and stable bed, may keep the current status ; for the sediment canal which seriously reduced discharge, may properly clean sediment ; for the seriously scoured canal, such as curved canal, should lining the canal
對于輸沙達到平衡、河床比較穩定又達到輸水能力的渠段，可保持現狀；對淤積比較嚴重又影響輸水能力的局部渠道，可進行適當疏浚清淤；對淘刷比較嚴重的彎道凹岸進行工程護砌。 -
Especially for resent years, because the conditions of coming discharge and sediment have occurred un - corresponding variation, shrink ' s velocity increases serious rapidly, shrink ' s characters tend to be serious, the river bed have been heightening continuously, from these, they have lead to various disaster effects obviously and brought heavy pressure for flood control and river harnessing
黃河下遊河道為嚴重的萎縮性河道。尤其是近年來，由於來水來沙條件發生非協調性變異，萎縮速率明顯加快，萎縮性更趨嚴重，河床持續抬高，由此引起的各種災害效應愈加明顯，對防洪及河道治理產生巨大壓力。
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