查询词典 soil

Based on the water and fertilizer coupling experiment in corn field,one-dimensional soil moisture content model containing the water uptake corn roots is used in this paper to simulate the evapotranspiration and the water uptake of corn roots and the change of soil pondage and soil moisture budget under the different water and fertilizer coupling conditions in corn field.

结果表明：在玉米生长初期以棵间蒸发为主，其后则是以植株蒸腾为主；玉米在30～40 cm土层吸水速率达到最大值；玉米灌水量为田间持水量的70%与85%对土壤0～80 cm土层贮水量的贡献是相等的，并且高肥力在一定程度上可增强根系的吸水能力，高灌水可增强玉米根系对养分的吸收利用，但对于提高水肥利用率来说，理想的处理为中肥中水。

In different growth stage, the soil pondage of R, H and Z treatments was larger than C, especially in anthesis stage, which indicated that R, H and Z could inhibit the useless evaporation of soil water before anthesis and promote grain filling. Different tillage systems had different Effects on soil pondage.

在作物不同生育时期，尤其是作物开花期，旋耕、耙耕和免耕模式的土壤贮水量高于常规耕作处理，这说明这三种模式可抑制作物开花前土壤无效蒸发，有利于促进籽粒灌浆。

Based different types soil arching,the paper think fricton soil perhaps come into being mojor or minor principal soil arching when the pile spacing was different.

在分析了不同的土拱类型的基础上，指出根据不同的桩间距桩间土拱分别以大、小主应力拱存在。

Circular and catenary always represent the shapes of minor principal stress soil arch between two parallel walls, but which shape should be used in the calculation of active earth pressure on two parallel walls remains disputed. Considering fully developed wall friction or partially developed wall friction, circular and catenary, the two shapes of minor principal stress soil arch between two parallel walls are theoretically analyzed. According to the shapes of soil arch, the coefficients of earth pressure corresponding to different angle of internal friction and that of wall friction are obtained, and the formula of active earth pressure on two parallel walls is derived.

鉴于计算平行墙间侧土压力时关于土体小主应力拱形的选择尚存在争议，考虑墙土摩擦角充分发挥和部分发挥两种情况，对平行墙间土体小主应力圆弧拱和悬链线拱分别进行了分析，得到了对应于不同内摩擦角和墙土摩擦角的侧上压力系数，以及平行墙间侧上压力的理论公式。

The results shows that quantitive variety of microorganism corresponding with forest age is not remarkable, but very remarkable with soil depth; the variety of bacterism quantity corresponding with soil depth abides by Quadratics Ratio model, the quantitive variety of actinomyces and fungi corresponding with soil depth fit to index function.

癌细胞与正常细胞的荧光光谱、荧光寿命特性及荧光峰值强度随时间变化曲线相差十分明显，反映了癌细胞与正常细胞对血卟啉亲和特性有显著的差异，测量结果确认了荧光光谱技术诊断与治疗癌症的可行性，并对发展超短脉冲激光光谱技术早期诊断与治疗癌症具有重要的指导意义和临床应用价值。

In this paper,soil erosion during the railroading engineering is analyzed in a systematic way;including the scope of duty on prevention of soil erosion, the topographic units, easy to be erided and the dynamic factors for soil erosion,etc.

我国是一个水土流失比较严重的国家，人口众多、耕地少、水土资源相对匮乏，特殊的国情和复杂的自然条件，决定了水土保持在国民经济和社会发展中的重要的地位和作用[1]。

When the geometric similitude ratio of the model to the prototype was determined and the loading similitude condition was satisfied by using similitude theory in structure modeling and experimental techniques, the prototype soil parameters were derived according to the model test result. The vibrating wheel compelled by harmonic exciting force was treated as a lumped mass vibrating system by equation equity method. By using this mechanical model in vibrating compaction, soil parameters were identified according to the equivalence of vibrating differential equation. The curve fitting method of amplitude versus frequency response was used for dynamic simulation based on the systematic dynamic equation of vibrating roller-soil system.

用相似理论与模型试验法在确定了模型与原型之间的几何相似比并满足载荷相似条件后，根据模型试验结果推导出了原型土体参数；用方程对等法把受简谐激振力作用的振动轮等效为集中质量振动系统，以此作为振动压实过程的力学模型，根据振动微分方程的等效条件进行识别；用幅频特性曲线拟合法以振动压路机－土壤系统动力学方程为基础，用计算机进行动态仿真。

Soil compaction induced by Xinjiang-2 combine harvester was higher than 4GG-170 reaping machine. Soil stiffness was influenced by Xinjiang-2 combine harvester in depth reaching to 30cm or more. 3~5 times compaction of Xinjiang-2 combine harvester on soil was equal to 10 times above of 4GG-170 reaping machine.

新疆－2号联合收割机使土壤硬度、土壤容重和孔隙度的变化程度大于前悬挂4GG-170型收割机；新疆－2号联合收割机对土壤硬度的影响超过了30cm；新疆－2号联合收割机对土壤3~5次碾压程度相当于4GG-17型收割机碾压10次以上。

Has weak activation and transfer under acid rain effect and redeposition will take place during the course of their moving from surface soil to deep soil. Contrasted quality standard analysis of surface water, ground water and drinking water, these elements will not bring about negative effect to the water environment and ecological environment of soil.

进一步相态分析结果表明，受酸雨淋滤作用的影响，离子的迁移主要发生在盐基离子上，具体表现在经酸雨淋滤后表层土壤水溶态组分中盐基离子浓度降低，与此相对应的是Al离子浓度显著增高，一个直观的反映是土壤的电导率降低。

Therefore, when the grid technique or the district was applied to regionalize spatial scale, individual soil profile are needed more to reduce uncertainties of the estimate of soil organic matter in the grid or the district with spatial scale up, but the uncertainties are smaller when using soil organic matter content in wellestimate gird or district to estimate the grid or district without available data by extrapolation.

因此，采用网格法或行政区划分空间区域，获得空间区域单元内土壤有机质含量或贮量的精确估算需要较多的剖面，但外推至数据不足的空间区域时，估算的不确定较小；采用土壤分类单元为空间区域单元，结果则相反。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。