侵蚀

Soil erosion is the process of that soil particles with surface attachments are moved, transferred and deposited under external forces, such as water power, gravity and wind power, physical, chemical weathering and eluviations, including human beings activities.

土壤侵蚀是指在外营力作用下，土壤颗粒及地表附属物被剥蚀搬运、迁移、沉积的一个过程，侵蚀的源动力来自于水力、重力、风力、物理或者化学风化、淋溶过程，人为活动也是一个重要的源动力。

Compared with the ordinary Na2O-CaO-SiO2 glass, the relationship of the glass ceramic composition and the meltingtemperature with the corrosion degree of the various refractories is discussed in detail. The microstructure and characteristics of each kind of refractorys matrice and keacting layer are analysized and a great amount of optical microphotographs are obtained, which may provide reliable theory basis to manufacture the glass ceramic.

本文运用多种有效的材料测试手段，对比Na_2O-CaO-SiO_2普通玻璃深入研究了CAS系统微晶玻璃溶液对不同池壁耐火材料的侵蚀机理，探讨了CAS系统微晶玻璃组分、熔制温度和耐火材料受侵蚀程度之间的相互规律，同时详细分析、评价了每种耐火材料基体和界面反应层的显微结构及其变化特征，为CAS系统微晶玻璃生产厂家选择合适的耐火材料及熔化工艺制度提供了可靠的理论依据。

And the results were compared with that in the composite hearth of semi-graphite self-baking carbon brick—ceramic brickwork. Some types of feedback information come from some practical and simulant measure temperature points to different hearth shapes made by erosion were analyzed. Some reasonable situations should be placed measurers were studied and advanced.

模拟计算了鞍钢7号高炉炉缸炉底在不同侵蚀形态下的温度场分布，并与几种的典型长寿结构炉缸相对比，分析了炉缸耐火材料层内各实际测温点与假设测温点对不同侵蚀形态反应，并提出了测温点合理的安放位置。

In this research,by way of the static state erosion experiment,and many kind material test means,three kinds of refractory erosions condition and the changes of CAS glass ceramic structure and performance have been discussed in detail. This paper has gained the full accurate data of large numbers,and has found out the influence level and law of different kind refractory and different erosions measuring to glass ceramic structure and performance.

本研究通过进行耐火材料在CAS微晶玻璃中的的静态侵蚀实验，运用多种有效的材料测试手段，深入研究了粘土、白泡石、锆刚玉等三种常用耐火材料的侵蚀状况及CAS系统微晶玻璃结构及性能产生的变化，获得了大量详实的数据，探讨了不同种类耐火材料、不同侵蚀量对微晶玻璃结构及性能影响的程度和规律。

The order of surface roughness under no-tillage with different standing crop stubbles is millet forage＞maize forage＞oats＞rape, while the order of the soil wind erosion modules is rape＞oats＞maize forage＞millet forage. The larger the soil wind erosion modules are, the smaller the surface roughness is.

留有不同直立作物残茬免耕土壤地表粗糙度草谷子＞草玉米＞莜麦＞油菜，土壤风蚀侵蚀率呈现相反的趋势，地表粗糙度越大，风蚀侵蚀率越小。

The results show that, the chloride concentrations and diffusion coefficients are both a one-humped function of elevations (can also be the time scale of seawater infiltration), they increase with the increase of elevation until they get to the peak value, and then decrease with the increase of elevation; an evident relationship is being between the surface chloride concentrations and the wave forces acted on the concrete surface, while there is no much difference among the diffusion coefficients; the diffusion coefficients get to bigger as the depth from the concrete surface increase in the influence of the capillary structures evolution and chloride concentration, but this tendency of change was alleviated with the increase of depth.

研究结果表明：氯离子侵蚀混凝土设施的竖向分布规律为氯离子浓度、扩散系数与标高之间同为单峰函数分布，先随高程变大而变大，达到峰值后，随高程变大而减小；氯离子侵蚀混凝土设施的环向分布规律为混凝土构件表面氯离子浓度、氯离子通量与波浪力之间有明显的对应关系，波浪力越大，则表面氯离子浓度和氯离子通量越高，而扩散系数在各方位角差别不明显；由于混凝土长期服役过程中内部毛细孔隙结构演化以及氯离子浓度的影响，氯离子扩散系数随混凝土深度变大而变大，但这种变化趋势随深度逐渐趋缓。

Prediction of sediment transport capacity in eroding rills is of great importance to the development of theprocess-based water erosion prediction model.

输沙能力是坡面细沟侵蚀过程预报模型中所需的重要参数，确定坡面输沙能力一直是土壤侵蚀研究关注的问题。

The HELR surface appears to stop near the NEtrending Yalong thrust belt,which coincides with a 50～200 km wide relatively steep drop in elevation across this plateau margin.

综合区域新构造和构造地貌研究的最新成果表明： 1）雅砻江逆冲断裂带可能代表着现今正经受侵蚀改造和弱化的高原老边界，该边界以北和以南地区抬升历史不同； 2）三江地区的峰值抬升期已过，目前以侵蚀为主。

Study it is tall purity, OK to fight eroded vitreous kiln to use actor * qualitative silica brick so the service life that prolongs vitreous kiln on certain level. 1 experiment develops vitreous kiln to be handpick and high grade raw material with the main avenue of high grade silica brick, the purity; that the alkalescent oxide content that in reducing raw material, takes will come to raise silica brick deserves to compare through adjusting raw material grain, apparent pore is reduced to lead when shaping in order to raise compact sex, achieve fight erode the effect.

所以探究高纯度、抗侵蚀的玻璃窑用优*质硅砖就可以在一定程度上延长玻璃窑的使用寿命。1试验研制玻璃窑用优质硅砖的主要途径为精选优质原料，降低原料中带入的碱性氧化物含量来提高硅砖的纯度；通过调整原料颗粒配比，成型时降低显气孔率以提高致密性，达到抗侵蚀效果。

As a complex interrelating and intercoupling system, complex erosion by wind and water has spatial-temporal variation features.

这种风力与流水对同一侵蚀对象的共同作用或交替作用塑造了风蚀水蚀交错区特有的侵蚀地貌景观。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。