As on the Moon, the extent of large impact cratering (i.e. craters too big to have been filled in by erosion since they were formed) serves as an age indicator for the Martian surface.
与月球上相同，那些巨大陨石坑的范围（例如，那些巨大到自形成后尚未被尘埃填满的陨石坑）标志着火星表面的年龄。
The formation was originally thought to be caused by a meteorite impact but now geologists believe it is a product of uplift and erosion.
对于形成的原因，一开始认为是陨星的撞击造成的，但现在地质学家认为是地壳隆起和腐蚀的结果。
Meanwhile, slope gradient had a great impact on purple soil erosion processes.
同时，坡面坡度对紫色土坡面侵蚀过程有重要的影响。
The parameters characterizing the capability of materials resistance to erosion, impact damage erosion energy and shear damage erosion energy were introduced in this model.
在模型中引入了表征材料抵抗侵蚀破坏能力的参数：冲击破坏侵蚀能和剪切破坏侵蚀能。
The successive spalling of splats from the lamellar interface of the coating caused by the impact of erosive particles is the dominant mechanism of erosion.
磨料冲击引起的裂纹沿涂层内粒子界面萌生、扩展并最终导致粒子剥落，是涂层主要的冲蚀磨损机制。
Here is surrounded by mountains, Lushui lingering, red sandstone in the wind and rain erosion showing a variety of attitude and visual impact of the strong sense.
这里群山环抱，绿水萦绕，在风雨的侵蚀，呈现出各种姿态和强烈的视觉冲击的红砂岩。
Flue gas containing hard grain of fly ash flow relative to the wall, on the wall wear called impact wear, also known as erosion. erosion.
含有硬粒飞灰的烟气相对于管壁流动，对管壁产生磨损称为冲击磨损，也称冲蚀。冲蚀。
During turbine working, the blade bears strong wind load, air erosion, shock load by minute rough granules, or impact by ultraviolet.
风力机在工作过程中，风机叶片要承受强大的风载荷、气体冲刷、砂石粒子冲击、紫外线照射等外界作用。
Steep rocks and thick jungle have helped the islands avoid human impact — many contain mysterious grottoes and caves, the result of 500 million years of formation and erosion.
陡峭的岩石和茂密的丛林保护这些小岛免受人类的影响：很多小岛上有神秘的岩穴和洞穴。这些洞穴是同事50亿年冲刷腐蚀而形成的。
Besides the storm tide impact, the main causes for coastal erosion are due to the continued decrease of material supply and manual extraction of sand and gravel.
海岸侵蚀的原因除风暴潮影响外，主要是海岸带物质补给来源持续减少和人工采挖砂石。
Due to the impact on erosion, the nutrient content upside and at the hedgerows was higher than that downside the hedgerows in general.
由于侵蚀过程的影响，植物篱带之上、篱带中养分含量高于篱带下。
The theory on elastic impact was used to analyze the shock effect of single particle, which is the main influencing factor of aircraft coating erosion.
运用弹性碰撞理论，分析单粒子的冲击效应对飞行器涂层的影响。
This paper analyzes the impact of the variation of coal proportion on flying-ash erosion in heating surface at the rear of coal-fired boiler.
飞灰磨损是导致锅炉受热面管壁减薄失效的一个重要因素，煤质的好坏又直接影响着飞灰磨损的强度。
In this paper, the properties of two starts of sand particles were analyzed, the fluid start was defined as wind erosion start and impact start of saltation as substitution start for the first time.
文章分析了沙粒两种起动的不同性质，首次把流体起动界定为风蚀性起动，把跃移质冲击起动界定为置换性起动。
On both sides of the bluff-body there exists high concentration and the airflow impact the bluff-body with a certain angle, which causes severe erosion of the two sides of the bluff-body.
在钝体两侧煤粉浓度比较大，且气流以一定角度冲刷，因此在钝体两侧煤粉对其冲刷严重，磨损加剧。
On both sides of the bluff-body there exists high concentration and the airflow impact the bluff-body with a certain angle, which causes severe erosion of the two sides of the bluff-body.
在钝体两侧煤粉浓度比较大，且气流以一定角度冲刷，因此在钝体两侧煤粉对其冲刷严重，磨损加剧。
应用推荐