查询词典 headwater erosion

EM analysis the worn surface morphology shows the following results: elastic deformation and fatigue are the main wear mechanisms of SMCC when impacted with lower erodent velocity, while the dominant mechanisms change into microcutting and microploughing with the increment erodent velocity.The slurry erosion behaviors of ceramic particles reinforced epoxy matrix composite coating were explored using a self-designed slurry pot tester.

首次采用自制的模拟罐式泥浆冲蚀试验机对环氧基复合涂料的泥浆冲蚀磨损性能进行了研究，通过调整固化剂聚酰胺与环氧的质量比，设计出最佳的基体组成；尽管涂层的铅笔硬度对其抗冲蚀性能有一定的影响，但起决定性作用的因素是涂层的韧性和硬度有机结合。

The seasonally alternative distribution of wind and rainfall provides energy for soil erosion and loose underlying material, erodible soil types and landform also provide the material basis for desertification.

而河湖积和风积的松散土壤下覆物质和地形地貌及土壤特征都为荒漠化的发生和发展提供了物质基础。

Land use in erodible region ; runoff erosion ; Hulunbeier League

水蚀区不同土地利用；径流冲刷量；内蒙古呼伦贝尔盟

When the erodible velocity was greater than the velocity that sediment started to move, the soil samples with burrows were easier erosion than the soil Samples without burrows.

当冲刷流速大于土样泥沙起动流速时，有生物洞穴扰动的土样比无生物洞穴扰动土样更容易被冲刷。

Then, soil structure was destroyed and formed erodible particles with size 0.154 to 0.18 mm in the soil surface. Under the impact of strong winds and vehicle wheels, soil erosion by wind and vehicle wheels in soil surface was severe, and some fine particles (≤0.063mm) disappeared gradually, so soil structure would evolve to be coarse.

在车轮的碾压作用下草原土壤表面形成易风蚀粒子（0.154~0.18 mm），受强风和车轮的携带作用后表土风蚀严重，很多细颗粒（粒径≤0.063 mm）在车轮的携带和强风的作用下会逐渐消失，土壤表面进一步向粗粒化发展。

The soil erodibilities are compared and appraised for the majority of the soil types in Ningxia. The method published by D. W. Fryrear et al is adopted to calculate erodible fractions for the soils in Ningxia. The erodibilities of main soil types are compared and analyzed. Spatial distribution of soil erodibilities in the region can be perceived on the Map of Ningxia Soil Erodibility. The map is based on the digitized map of soil types of the all region by means of the geographical information system of Region Manager. Evaluation results show that erodible soils occupy a large portion of the total area of the region.(3) The third task is evaluation of effects of human activities for farming on soil erodibility. Tillage and cultivation can alter soil properties. The paper, based on the discussion on the characteristics of farmland suffering wind erosion in the region, analyzes the contents and intensities of farming disturbing surface soil. Emphasis is paid on the effect of farming on erodibilities of each type of soil.

W Fryrear等人的计算土壤可蚀部分含量的方程，此方程的自变量包括土壤有机质、碳酸钙、沙粒含量、沙粘比，计算了宁夏主要土壤类型表层的可蚀含量，进而比较它们的可蚀性，并以宁夏土壤分布图为底图用地理信息系统建立了宁夏土壤风蚀数据库，完成了宁夏土壤可蚀性图，评价结果显示宁夏地区主要的土壤类型较容易遭受风蚀；（3）农业经营对土壤风蚀的影响及其评价，在分析宁夏农业土壤遭受风蚀特征的基础上，首先讨论了农业活动对土壤理化性质的干扰，评价主要耕作栽培措施对土壤风蚀的影响，选取粗糙度、表面结皮、可蚀颗粒含量、留茬和有效时间为指标，用打分方法作了评价。

South coast of the Laizhou Bay ; coastal erosion ; erosional process ; affecting factor ; weight

莱州湾南岸；海岸侵蚀；侵蚀过程；影响因素；权重

In this paper,the erosional and depositional stability of the Lanjiang sand bar in the Longkou Bay is studied by making a comparison between water depth data in different periods,and the erosion and deposition mechanisms of the Lanjiang sand bar are discussed by analyzing the formation process of sand bar and the sediment movement around sand bar.

通过不同时期的水深对比对龙口湾拦江沙坝的稳定性进行研究，从其形成过程和现代泥沙运动的角度对拦江沙坝冲淤变化的机制进行探讨。

It is shown from the analysis results of available shoreline monitoring data and historical observed data that the maxium erosion depth in the area during 1985 to 2004 has reached 7.5 m,the central location of intensive erosional area has undergone a shifting process from northwest to southeast,th...

黄河三角洲强侵蚀岸段岸线监测资料与历史资料分析研究结果表明，1985-2004年该区最大侵蚀深度达7.5 m，其强侵蚀区中心位置经历了由西北向东南移动的过程，范围不断缩小，目前局部地区已发生淤积现象。

The second part of the dissertation comprehensively analyses geological background and erosional geomorphological conditions in the test regions, elaborates on evolution characteristics of erosional environment in the regions, probes regional distinguishing regularity of erosional geomorphological patterns as well as their developing and evoluting features in loess fields, and places emphasis on discussing developing and evoluting trends of soil erosion in the watershed.

本文的后半部分对试验区的地质背景与侵蚀地貌条件进行了综合分析，阐述了区域侵蚀环境的演化特征，探讨了黄土地区侵蚀地貌区域分异规律及其发展演化特征，并着重讨论了流域土壤侵蚀的发展演化趋势。

We got alerted a couple of times while we were down south that HETs were on the way to bring us back up north because things were going to go hot again, but it was just rumors.

南下的途中我们不只一次得到警告说重型装备运输车将拉着我们重新北上，因为局势正在变得重新紧张起来，但这只是谣传。

It's the one where they find the ghost in the salt mine.

这一集是演他们在盐矿找到鬼