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Due to an abundant rainfall and frequent rainstorm, and geographical characteristics of mountain and hills, the potential erosive dynamics of soil erosion is strong. The low resistant erosion ability of ground substance, especially in granite weathering crust and purple rock and its soil are the inner causes of severe soil erosion. The utilization of natural resource of mankind was increased due to characteristics of social and economic environment of the province. The unreasonable land utilization caused vegetation destroy, which is the key factor of soil erosion.

丰沛的降雨和频繁的暴雨,以及多山地丘陵的地形特征,为土壤侵蚀提供了强大的侵蚀潜在动力;抗侵蚀性较弱的地面组成物质,特别是花岗岩和紫色岩风化壳及其土壤,是造成土壤侵蚀特别严重的内在原因;而社会经济环境特点使人类利用自然资源强度增加,出现了一系列土地利用不合理现象,导致其中植被破坏,是造成土壤侵蚀的决定性因子。

Rare samples of mother rock 'kimberlite', from Siberia, South Africa and Australia, displayed as an introduction to the geological section of the museum,- how diamonds originate from a volcanic magma, formed in the earth's mantle, 100 - 200 km below the earth's surface, and are transported through volcanic pipes to the earth's surface.

陈列了来自西伯利亚、南非和澳大利亚的罕见的金伯利岩样本。通过对它们的地质解理面的介绍,来说明钻石在火山岩浆中的形成过程,即钻石是在100~200公里的地幔中形成,随着火山爆发被喷射到地球表面。一个显示全世界钻石产量的模型(0.4立方米大小)是博物馆的精粹,就这0.4立方米的钻石,养活着全球200多万钻石业人。

Macro emulation witnessed Leonardo DaVinci's flying machines, Antonio Vivaldi's Four Seasons , and Jules Verne's cephalopodic, submarine creations; micro emulation found stained glass cathedral windows in dragonfly wings, Volkswagen bugs in Coleoptera, umbrellas in mushroom caps and gills, art nouveau music stands in Portuguese man-of-wars , fishing nets in spider webs, Japanese wagashi in cherry blossoms and frozen pine boughs, and Chinese scholar's rocks in pluming smoke and roiling ocean waves.

宏观仿真目睹列奥纳多达芬奇的飞行机器,安东尼韦华的四季,凡尔纳的cephalopodic ,潜创作;微观仿真发现彩色玻璃教堂窗户的蜻蜓翅膀,大众臭虫在鞘翅目,雨伞,在蘑菇帽子和鳃,艺术风格的音乐,站在葡萄牙语男子--战争,鱼网,在蜘蛛网,日本的点心,在樱花和冷冻松树boughs ,和中国学者的岩pluming烟雾和颠覆海浪。

This dissertation, based on (1) field investigations and observation along Jiangsu coastal environment (including: sea bottom and tidal flat sediment sampling, water depth, salinity, current velocity and direction, core drilling and so on);(2) integrative laboratory analyses of micropalaeontology, sedimentology and computer-processed mathematical statistics on over 300 samples and about 100 thousand foraminifera tests, try to find and formulize the relations between foraminiferal thanatocoenose and environment.

本文的写作基础是:通过野外进行的海岸环境调查和测量(主要调查项目有:水深、盐度,流速、流向、含沙量、底质采样、浅地层地震剖面仪探测、潮滩钻孔取样、潮滩探槽的挖掘与沉积物取样、观测等等)取得了环境参数和大量样品;在实验室运用微体古生物学、沉积学、数理统计与计算机分析相结合的方法,对所采集的现代表层沉积物和钻孔岩芯样品共计三百多个进行了分析研究,鉴定统计有孔虫标本十万余枚,研究有孔虫埋葬群特征与环境参数之间的定性-定量关系。

One is that,by the shove of passive rift valley polycycle,quartz sandstone with high maturity of lithologic composition deposits on the background of sub-plain during sag period;together with the rock formation environment of paranormal saltless local water,the reservoir characterized b.

厘定该盆地这种突出商业价值的地质因素主要表现在以下两个方面:1被动裂谷的多旋回推移,在坳陷期的准平原背景下沉积了高岩石成分成熟度的石英砂岩,加之超淡地层水的成岩环境,最终形成盆地的高孔高渗储层;2&教科书&式的生储盖组合。

By means of FEM simulation and application of the equivalent continuum model and the discrete fissure model, we can conclude that the larger density of fissure, the more identical the two methods will be. Based on this conclusion and characteristic of fissured rocks, a new model called the entity mixed model is suggested. Many examples given in the thesis demonstrate the reliability, effectivity and efficiency of this model.

通过对等效连续介质模型和离散裂隙介质模型的有限元模拟和计算,证实了裂隙密度愈大,两种模型的结果就愈为接近,以这一结论和裂隙发育的特征为基础,本文提出了裂隙岩体渗流分析的统一域混合模型,多个算例表明这一模型是合理、有效的,且具有更普遍的实用价值。

After the result of cohesion-friction model is compared with Coulomb Criterion, it is found that when the results of shearing strength are many and adjacent the strength parameters can not be regressed by least square method, instead the results should be divided into some beelines at that time according to the cohesion-friction model.(4) Discuss the characters of hard structural plane and weak structural plane: The adhesive friction theory is applied to research the changing course of shear area of hard structural plane and its influence on shear stress.

3介绍了岩石强度理论中的粘接摩擦模型,运用此模型分析依附型滑动面的演化过程,并将其推广到边坡岩土体抗剪强度的选取,讨论了不同法向应力下峰值强度和残余强度随法向应力的变化规律,在此基础上给出抗剪强度的选取模式,讨论了对实际取值结果的影响,并与传统的Coulomb准则进行了比较分析,指出直剪试验的法向应力在小应力区的点较多且抗剪强度结果差异不大时,不宜直接运用最小二乘法回归抗剪强度参数,此时应结合粘接摩擦模型对结果进行线性分段。

Introduce the cohesion-friction model of rock strength theory, and extend the model to select the strength of sliding plane, discuss the variation rules of peak strength and residual strength under different normal stress, and then present the selection model of shearing strength. After the result of cohesion-friction model is compared with Coulomb Criterion, it is found that when the results of shearing strength are many and adjacent the strength parameters can not be regressed by least square method, instead the results should be divided into some beelines at that time according to the cohesion-friction model.(4) Discuss the characters of hard structural plane and weak structural plane: The adhesive friction theory is applied to research the changing course of shear area of hard structural plane and its influence on shear stress.

3介绍了岩石强度理论中的粘接摩擦模型,运用此模型分析依附型滑动面的演化过程,并将其推广到边坡岩土体抗剪强度的选取,讨论了不同法向应力下峰值强度和残余强度随法向应力的变化规律,在此基础上给出抗剪强度的选取模式,讨论了对实际取值结果的影响,并与传统的Coulomb准则进行了比较分析,指出直剪试验的法向应力在小应力区的点较多且抗剪强度结果差异不大时,不宜直接运用最小二乘法回归抗剪强度参数,此时应结合粘接摩擦模型对结果进行线性分段。

Along with the increasing distance from the main ore-controlling structures, or from the deeper to shallow parts of an ore body, the species and content of metallic sulphides seem to increase.

随远离主干断裂或由矿体的深部到浅部,金属硫化物的种类和含量呈升高的趋势,往往由少硫化物蚀变岩型向多金属硫化物石英脉型转化,矿脉中的上部矿体或同一矿体的上部,金属硫化物的种类和含量较高,这种变化规律和矿脉的地球化学特点是吻合的。

December 10th, I began now to think my Cave or Vault finished, when on a Sudden,(it seems I had made it too large) a great Quantity of Earth fell down from the Top and one Side, so much, that in short it frighted me, and not without Reason too; for if I had been under it I had never wanted a Grave-Digger: Upon this Disaster I had a great deal of Work to do over again; for I had the loose Earth to carry out; and which was of more Importance, I had the Seiling to prop up, so that I might be sure no more would come down.

十二月十日我本以为挖洞的工程已大功告成,可突然发生了塌方。也许我把洞挖得太大了,大量的泥土从顶上和一旁的岩壁上塌下来,落下的泥土之多,简直把我吓坏了。我这般惊恐,当然不是没有理由的。要是塌方时我正在洞内,那我肯定用不着掘墓人了。这次灾祸一发生,我又有许多工作要做了。我不但要把落下来的松土运出去,还安装了天花板,下面用柱子支撑起来,免得再出现塌方的灾难。

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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?