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According to the result of artificial rainfall, the character and factors affectedby soil, rainfall, chemicals, slope length, slope gradient and field mangment practices, for rainfall, runoff,infiltration, soil erosion and soil chemicals, such as NO_3~-, NH_4~+, PO_4~(3-), K~+ and Br~-, are investigated. Thedeterminate methods, influence factors and practical application of the mixing zone depth are also researched.The results can enrich the dynamics of soil, water and nutrient transport, evaluate the soil water and fertilizerefficiency, and theoretically benefit the research of agricultural NSP on loess hill slope. 1. According to the surface transport experiments of soil chemicals under the non-satuation soil and watererosion condiction, for adsorbed PO_4~(3-) and K~+, the time of sheet erosion and rill erosion initiation is coincidentthat of chemicals content in surface runoff climbs, and then their abundant export by surface runoff is urged.

本文以黄土坡地为研究对象,通过模拟降雨试验,研究土壤因素、降雨因素、化学物质理化性质、坡长坡度因素和农田管理措施等对坡地降雨—产流—入渗—土壤侵蚀—农田NO_3~-、NH_4~+、PO_4~(3-)、K~+和Br~-地表迁移的影响,研究非饱和土壤和水蚀条件下混合层深度的确定、影响因素和模拟,探讨其在黄土坡地的实际应用,为丰富坡地水分养分迁移动力学、提高旱地土壤水分养分利用率和深化农田非点源污染研究提供理论依据。

It has been found that a lot of gypsum and zinc bearing siderite occur on the surface of Xitieshan deposit and near ore country rocks of the upper part of the ore body.

锡铁山矿床地表及上部中段的近矿围岩中发育大量的石膏和含锌菱铁矿,长期以来主要作为喷流沉积或后期改造的产物。

On the basis of clastic theory, a basic differential equation characterizing the movement of ground surface and rock strata is derived and a sieve method for influence functions brought forward.

本文根据碎块体理论导出了表征岩层和地表移动的基本微分方程式,提出了影响函数的筛选法,确定了威布尔分布密度函数是最佳的影响函数形式。

First of all, retreat of glaciers and shrink of perennial snowbank induced by climate warming provide parent materials and spatial room for soil formation and development in the maritime Antarctica. Meanwhile, melt water originating from glaciers and snow-ice covers enhances temporal and spatial availability of free water, which plays all-important roles both in periglacial processes and the processes within soil profiles, thus influencing soil genesis and evolution to a great degree.

首先,南极海洋性气候区日益加速的气候变暖现象导致冰川消退、地表积雪融化,为土壤形成与分布提供了母质与空间基础;同时,气候变暖导致自由水活动在时间和空间上的加强促进了以自由水为基础的土壤过程和冰缘地貌过程,对南极海洋性气候区土壤发生、发育产生深刻影响。

We have computed the horizontal slip rate in surface and the strain along fault strike of main faults in Sichuan-Yunnan area by use of the modified fault deformation model and GPS data.

用改进的断层形变模型和GPS资料对川滇地区主要断层的地表水平滑动和沿断层方向的应变进行了计算。

These wayward rocks would regularly cross paths with Saleucami's orbit, striking the planet with enough force to leave huge craters.

这些外围的石头会规律地通过沙列屋加米的运行轨道,然后坠落在星球地表造成巨大的陨石坑洞。

The paper makes an analysis on the main influence factors to mining subsidence in strip mining as well as the stability and function mechanism of backfill body in backfilling mining .

文中对充填采矿条件下的充填体的稳定性和作用机理进行了分析,并对条带开采条件下地表沉陷的主要影响因素进行了探讨。

In addition, aerodynamic roughness of stubble field increased with the increasing of stubble height, until the heights reached 15, 30, 15 cm for naked oats stubble, oilseed rape stubble and wheat stubble, respectively.

同类作物不同高度的留茬覆盖下,地表空气动力学粗糙度随留茬高度的增加而增大,在莜麦、油菜和小麦茬高度达到15、30和15 cm时显著增大,是3种留茬防风的有效高度。

For the analysis of tunnel, different depth of burial, spacing interval andstiffness of subjacent bed are considered;for the analysis of building on the groundand pile foundation, relative position is mainly considered;for the undergroundpipeline, depth of burial, relative position, material texture and stiffness of subjacentbed are considered.

对于隧道的影响分析,考虑了不同的埋深、间距和不同下卧层刚度;对于地表建筑物和桩基础主要考虑了与隧道不同的相对位置;对于地下管线,埋深、相对位置、材质、下卧层刚度等应因素进行了考虑。

The place the Beanes inhabited stretched nearly a mile underground, and when the tide came in, the water went into their subterraneous hideout nearly 200 yards.

比恩一家居住在距离地表一英里的地方,当潮汐进入,海水会淹没他们的地下藏身处将近200码的距离。

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Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。

This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.

这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。