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- Besides relative to the hydro-dynamic conditions, the changes of the siltation and erosion have close relationships with the channel regulation. 航道冲淤除与水动力条件有关外,与治理工程也有密切联系。
- GIS supporting study on current siltation and erosion dynamic changes of Yellow River Mouth[J].Scientia Geographica Sinica,1999,19(5):442-445. GIS支持下的黄河口近期淤、蚀动态研究[J].;地理科学;1999;19(5):442-445
- siltation and erosion changes of topography 地形冲淤
- The rock is resistant to weathering and erosion. 这种岩石不易风化和侵蚀。
- The sand is separated from the silt and clay by wave sorting. 砂粒在波浪分选作用下从粉砂及粘土中分出。
- Eventually, the lagoon filled with silt and became land. 最终,泻湖充满淤泥,并成为土地。
- Over time, though, silt and leaves had clogged the drain. 但是,时间久了,淤泥和树叶就会阻塞下水道。
- siltation and erosion 冲淤
- The most often side effects were local mild erythema and erosion. 最常见的不良反应为局部轻度红肿、糜烂。
- The result of this study shows that, with the increase of soil erosion, the aggregate of>5mm and>0.25mm in particle size, silt and water-dispersion clay decrease. 研究结果表明;随着土壤侵蚀程度加剧;>5mm和>0.;25mm团聚体、粉砂含量减少;砂粒和粘粒含量增加;
- Uplift and erosion at last produced the desert landscape we see today. 最后,地表抬升和侵蚀作用产生了我们今日所见的沙漠风貌。
- Silt and clay is the main fillings of high-qulity subbase in our country. 粉性土、粘性土为我国高等级公路路基的主要填料。
- Material: made from PVC, oil and erosion control, heat resisting up to85℃. 材质:采用优质pvc制成,能防止油性及其他物质侵蚀.
- No longer abrasion and erosion of lining caused by conveyed fluid particles. 消除了由于输送介质而产生的对内衬的磨损和腐蚀.
- Eurasian grass grown in United States great plains area for forage and erosion control. 生长于美国大平原地区的欧亚草种,用作饲料或控制水土流失。
- The overflow dredging method is predominantly used to dredge silt and, generally, only with outgoing tide. 溢流疏浚法主要且于疏浚泥沙,一般只利用退潮来进行。
- siltation promotion and erosion control 促淤防冲
- A fine - grained, dark gray sedimentary rock, formed from silt and clay and similar to shale but without laminations. 泥岩一种细粒的、深灰色的沉积岩,主要由淤泥或粘土组成,类似页岩但不具纹层
- Channel deposits, consisting of sand, silt and clay, fill the valleys cut by a river system. 河道沉积由砂,粉沙和粘土组成,充填于河流切割的河谷之中。
- These prehistoric geologic wonders known as slot canyons have been craved by centuries of rain and erosion. 这种史前的地质奇观经过数世纪的雨袭和侵蚀而成。