大峡谷是河流侵蚀作用的产物。
研究结果表明，平谷地区的地表陡坎是河流侵蚀陡坎。
Study results indicate that the surface scarps of the Pinggu area are river erosion scarps.
该沟主要工程地质问题为边坡稳定性、渗透稳定性、河流侵蚀等。
The main engineering geological problems of the gully are slope stability, seepage stability and fluvial erosion, etc.
河流侵蚀形成陡坎的方向追随河流的冲沟方向，具不稳定性，并且陡坎的倾向沿河对称。
Direction of scarps caused by river erosion follows the river, is unstable and the tendency of scarps is symmetric along the river.
时间过去，河流侵蚀碎片，但我们仍然能看到在支流峡谷中出来的滑坡沉积物和三角洲沉积物中湖泊的证据。
Over time the river eroded out the debris, but we still see evidence of the lake in the landslide deposits as well as delta deposits coming out of the tributary valleys. The O.S.L..
因为你喜欢野外活动，也许你能找到办法解决土壤侵蚀问题，那样就可以防止世界上主要河流侵蚀其河岸的问题了。
Since you like the outdoors, maybe you'll find a solution for soil erosion that will prevent the great rivers of the world from eroding their Banks.
骨头分解，土地侵蚀，气候变化，森林重生，河流改道——而历史，如果没有被摧毁，也会被逐渐掩盖。
Bones disintegrate, the land erodes, the climate changes, forests come and go, rivers change their course — and history, if not destroyed, is steadily concealed.
巴克尔和同事们弄清楚了，这些散落于地的木头化石来自一片被河流严重侵蚀的斜坡。他们在斜坡上向下挖掘，找到了更多的木头，还有树叶和心皮。
When Barker and colleagues found where the scattered logs were coming from-a slope that had been eroded by a river-they dug in and found many more logs, as well as leaves and seedpods.
其实我本来无非是想让这些过分砍伐的人减少大面积砍伐的范围，在马路边和河流边保留足够的树木，以减少对土壤的侵蚀。
All I wanted the clear-cutters to do was to reduce the size of their big cuts and leave adequate buffers along roads and streams to reduce soil erosion.
当一条河在平原地带形成了一个圈圈，侵蚀会造成互相挨得很近的两个河岸最终连在一起，使得河流有一条捷径。
When a river forms a loop on flat terrain, undercutting occurring on the riverbanks closest to each other can eventually connect the Banks, giving the river a shortcut.
对水质而言，土地侵蚀确实是一个主要的危害，堵塞河流和湖泊及倾撒肥料和杀虫剂进入供水系统。
Erosion can do major damage to water quality, silting streams and lakes and dumping fertilizers and pesticides into the water supply.
伐木工和石油公司开凿的水道侵蚀了岛上的很多土地，几十年的防洪工程阻断了曾经通畅的河流，让湿地的沉积层得不到更新。
Channels cut by loggers and oil companies eroded much of the island, and decades of flood control efforts have kept once free-flowing rivers from replenishing the wetlands' sediments.
此外，设计中也包括了对沉积和侵蚀的控制，这将会逐渐创造各种河流景观特征的生态型。
Furthermore, conditions for sedimentation and erosion processes are carefully included in the design, which will gradually create various ecotypes, characteristic for the river landscape.
如此的侵蚀可能磨损出峡，或峡谷。科罗拉多河大峡谷是世界上最大的河流峡谷。
Such erosion may cut a gorge or canyon. The Grand canyon of the Colorado river is the largest river canyon in the world.
随后的山体滑坡及其它块体移动又造成了头向侵蚀与河流袭夺，种种的这些都倾向于加深、扩展干旱环境中的峡谷。
Subsequent landslides and other mobile block caused the first to capture and river erosion, all kinds of these tend to deepen, expand arid canyon environment.
河流输沙的情况如何，是最为客观反映该流域内土壤侵蚀状况的标志。
How are sediment load in river? It is the objective mark for soil erosion in the valley.
在本区入海的一些河流上兴修的水库与挖沙采石，减少了入海泥沙量，这些人为因素是现今秦皇岛海岸侵蚀灾害的主要原因。
Man made reservoirs and sand excavation in some rivers reduce silt discharge into sea, these human activities are vital factors that cause coast erosion hazard in Qinhuangdao region recently.
研究结果表明，刁口河流路废弃后飞雁滩海岸向海凸出的地形特征，是造成该岸段强烈侵蚀的重要原因。
Results indicate that the protruding topography left after the Diaokou River distributary was abandoned is the main cause of strong coastal erosion.
澳大利亚的火山因侵蚀而风化，河流深深地穿过岩石的坡面，冲刷出令人惊叹称奇的沟壑和峡谷。
Australian volcanoes have eroded and rivers have cut deeply through long rocky cliffs, carving great gaps and canyons.
第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。
First, erosion resulting from excessive deforestation in the upper reaches of the river. And second, heavy silting which raised the riverbed in the main channel.
设计的依据是河流动力学中侵蚀、沉积和潮汐的原理。
The design is based on the river water dynamics, the erosion and sedimentation process and the tides.
穿过有大面积中生界和第三系地层出露地区的河流，其含沙量高，侵蚀模数大。
The rivers running across large area with emergence of Mesozoic and tertiary stratum usually have high sediment concentration and large modulus of erosion.
气候的周期性变化使河流发生周期性的堆积与侵蚀，会形成一系列阶地。
Periodic climate changes cause periodic river accumulation and erosion, resulting in a series of benches.
在此沉积时期，湖盆开始较快速地水退，侵蚀基准面下降，河流搬运能力增大，物源供给充足。
At this sedimentary period, the water in Lake Basin began to recede fleetly, the base level of erosion grew down, the schlep ability of river grew up, and the supply of source was abundant.
在此沉积时期，湖盆开始较快速地水退，侵蚀基准面下降，河流搬运能力增大，物源供给充足。
At this sedimentary period, the water in Lake Basin began to recede fleetly, the base level of erosion grew down, the schlep ability of river grew up, and the supply of source was abundant.
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