淤積率 的英文怎麼說
中文拼音 [yūjīlǜ]
淤積率
英文
rate of silting-
Based on 2m contour of surveyed bathymetry from 1976 to 1999 and mean - high - tidal line distracted from remote sensing images acquired by landsat - 5 tm from 1976 to 2000 respectively, quantitative analysis about alluvion and erosion as well as the relationship between accretion of modern yellow river delta and the water and sediment discharge of yellow river is made, and the results indicate the mean - high - tidal level is more effective than 2m contour of the bathymetry. it is found that the accretion of modem yellow river delta is becoming less and less, what ' s more, erosion is even more than alluvion in some recent years. diaokou promontory has been eroded seriously since yellow river changed its course in1976
以一般高潮線反映現代黃河三角洲沖淤演變時，從1976年黃河改道清水溝流路入海到2000年，整個黃洞三角洲凈造陸201 . 5km ~ 2 ，淤積有逐漸變慢的趨勢，甚至出現凈蝕退的年份；刁口河嘴大量蝕退，蝕退速率開始快速，后來逐漸變慢；清水溝河嘴大量淤積，淤積速率開始迅速，后來逐漸變慢，甚至出現凈蝕退；清水溝河嘴南側到支脈溝一段岸線與刁口河嘴以西到灣灣溝一段岸線基本穩定。Firstly, we account for the former made and the sand selected are reasonable by experiments. then we develop the first project carrying the experiment for filling up of 30 years. contrasted with the count, the results have no difference, we carried two experiments under different water levers by the actually facts if engineering work in early days. by the result, we know that the gross of fill up have no difference
本文從白石水庫泥沙模型試驗入手，模型試驗首先通過模型糙率和模型選沙驗證試驗，說明模型製作和選沙是合理的；然後開展初設方案30年運用水庫淤積試驗，並與數模計算對比，基本相同；試驗結合工程初期運用實際情況，進行了兩個不同初期運用水位方案的對比試驗，從兩個方案試驗結果看，初期運用的兩個方案淤積總量差別不大，而從效益看，方案二優于方案一。The poor flow patterns are inclined to exist in the round sump which is not designed properly and then the inlet condition of the pump is not good, which makes the efficiency of the pump unit drop and causes vibration. if there are a lot of sediments in the water flow, the problem of sediment deposition is to be solved
圓形集水池由於其結構的特殊性，設計不當易導致池內流態紊亂、水泵吸水條件差，繼而影響水泵的正常運行，導致水泵機組效率下降、振動等，如果來水含有泥沙則易產生泥沙淤積。
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