已土

报纸已变成土黄色了。

The paper has turned a muddy colour .

昔日黄花已成土，又见新花笑今朝。

Yellow soil has become the past , see the new flowers Jinzhao laugh .

FTIR证明有机插层剂已进入蒙脱土的层间。

The FTIR spectrogram showed that the organic reagents had intercalated into the layers of MMT .

经红外光谱和X射线衍射表明，有机插层剂已进入蒙脱土的层间，有机蒙脱土的层间距由1.2nm增加到1.4～2.3nm。

The spectra of FTIR and XRD showed that the organic reagents had intercalated into the layers of MMT , and the spacing of MMT layers increased from 1.2 nm to 1.42.3 nm .

近几年来复合土钉支护已在软土地区得到了广泛应用。

Composite soil nailed structure is of wide-spread application in soft soil in recent years .

数值模拟已成为岩土工程稳定性分析计算的有效方法之一。

Numerical simulation is one of the effective methods to analyze the stability of geotechnical engineer .

边坡地震稳定性分析已成为岩土工程界和地震工程界的重要课题之一。

Analysis of seismic stability of slopes have become one of the important topics in geotechnical engineering and earthquake engineering .

这一问题已引起岩土工程领域很许多专家的关注，并成为该领域的研究热点。

The problems have attract attention of experts in the geotechnical area and become the key study subject in the area .

对我国高产水稻区嘉兴地区典型水稻土进行了磷素状况测定及环境效应评估⒚结果表明，流行的磷肥管理实践已造成水稻土磷素的积累；

The phosphorus status of the typical paddy soil and its environmental effects were studied in Jiaxing of Zhejiang Provence , the high yield rice production area in China .

大棚温室土壤中的盐离子含量明显高于露天菜地和林地土壤，其含盐量已达盐渍化土标准。

The salt ion content in plastic greenhouse soil was significantly higher than that in open vegetable fields and woodland ones , with salt content up to the salinification soil standard .

目前，生物防治已成为克服土传植物病害的重要途径之一，而利用拮抗菌防治土传棉花黄萎病日益受到国内外的重视。

Biological control has become the most important way in control of soil-borne plant diseases , and the use of antagonistic bacteria against Cotton Verticillium wilt is drawing more and more attention .

随着基坑开挖深度的增大，基坑变形的预测与控制已成为岩土工程领域研究的热点之一。

As the depth of foundation pits becomes bigger and bigger , the study of prediction and control of the displacement of foundation pits becomes one of the hot subjects studied in geotechnology field .

随着高层建筑、地铁、核电站等大型重要工程的建设和发展，深基坑工程已成为岩土工程领域的重要课题。

With construction and development of some large important engineering projects , such as high-rise buildings , subways , nuclear power stations and so on , deep excavation has been a critical question in geotechnical engineering .

无土栽培中往往由于根际供氧不足而影响植株的生长发育，已成为无土栽培实践中急需解决的技术问题。

In soilless culture , O2 deficiency in the root-zone is usually thought be a major adverse effect on plants growth and development . This has been an urgent problem that should be solved in soilless culture .

根际低氧胁迫是植物非生物胁迫的重要因子，影响植株正常的生长发育，根际低氧胁迫已成为无土栽培技术大规模应用于生产的限制性因子。

Hypoxia stress in root-zone is one kind of antibiotic stress , which influences the normal growth and development of muskmelon seedling . Now hypoxia stress has become a bottle neck of soilless culture application to large area production .

边坡失稳是仅次于地震和泥石流的第三大地质灾害，边坡工程风险分析已成为岩土工程界的热点问题。

Ranking only second to earthquake and debris flow , slope instability is the third geological hazard . Issues , such as , evaluations of slope instability and geological hazards of collapse , landslide and debris flow have been hot research topics in academic circles .

再生水浇灌的土壤已接近轻度碱化土，且有加深的趋势；IBL对碱敏感。

The soil irrigated with mixed water was inclined to light alkali .

FTIR和DTA-TG都证明有机插层剂已进入膨润土的层间；XRD表明膨润土的层间距由1.4增大到4.3nm；

Both FTIR and DTA-TG proved that octadecylamine entered the layers of bentonites , and XRD showed that the lamellar distance increased from 1.4 nm to 4.3 nm .

根据已建立的地基土-单桩系统横向非线性动力相互作用的简化分析模型，在动力Winkler模型的基础上，研究单桩横向非线性惯性响应。

According to the developed one-dimensional simplified model , the lateral nonlinear inertial responses of single piles based on the Beam-on-Dynamic-Winkler-Foundation model are studied in this paper .

XRD和TG分析结果表明，锌离子和季铵阳离子已交换到蒙脱土中，且复合抗菌剂中季铵阳离子的热分解起始温度约为210℃。

The results of XRD and TG reveal a perfect exchange of Zn ~ ( 2 + ) and quaternary ammonium cations into montmorillonite as well as an onset decomposition temperature of the quaternary ammonium cation of about 210 ℃ .

土体剪切带形成的研究已成为当今国际土力学十分重要的研究领域。

Nowadays , study of formation of shear bands in soil has become an important research field in soil mechanics .

随着世界对石油需求的不断增长，石油类已成为地下水-土环境中一类重要的有机污染物。

With the growing demand for oil around the world , petroleum has become an important kind of organic pollutants in groundwater system .

参数给不准，数据有限，本构机理不清楚，不确定性和非线性极强，已成为困扰岩土工程师的严重问题。

Uncertainty of parameters , shortage of data , mistiness of constitutive law , and serious nonlinearity has been a big obstacle to engineers .

对以降低投入为优选因子或以获得植物产出效益为主要目的的设计方案，分别推荐已分解的垃圾土和砂土为覆盖材料。

Decomposed rubbish and sand were recommended respectively as covering materials for the design options in which low cost or high benefits are mainly considered .

崩塌分类和崩塌稳定性检算方法已被《岩土工程勘察设计手册》和《地质灾害勘查指南》等采用。

The classification methods and the calculating methods for the stability of collapses are used by Geotechnical Investigation and Design Manual and Geological Hazards Investigation Guide .

目前已提出的岩土本构模型数以百计，新的本构模型更是层出不穷，但绝大部分都还停留在数学表达式上，很少能应用于工程实际。

There are hundreds of geotechnical constitutive models that have been proposed , but most of the constitutive models are just a mathematic representation and few can applied to engineering .

该模型的二维形式已采用饱和黏性土样室内动态三轴不排水剪切试验的结果进行了验证并已在另文发表。

The two-dimensional formulation of this model has been verified with respect to the triaxial test results of clay samples under undrained cyclic loads ( reported in a separate paper ) .

土结构性是决定各类土力学特性的一个最为根本的内在因素，因此土的结构性模型的建立已成为21世纪土力学的核心问题。

Structure is the most important factor determining the soil 's characteristics . Then it comes to be " the nucleus problem in soil mechanics in 21st century " that to establish an model about soil structure .

由于微观结构是影响土体工程性质的一个重要因素，所以土体的结构研究已日益受到岩土工程界的重视，本论文将对砂土的细观结构变化进行研究。

Because micro-structure is a significant factor in the engineering characteristic of soil , geotechnical engineering field has attached importance to the study of soil structure increasingly . The paper studies the transformation of sand structure mostly .

在这些地区，人为活动对土壤的形成和发育的影响已超过其它成土因素，特别是对表层土壤的影响，使土壤&景观发生新的分异。

Due to human activities on the soil of the growing impact in some areas more than other soil factors , in particular on the impact of surface soil , The soil - landscape has the new differentiation .