查询词典 properties of soil

In addition, the corncob and soil with a proportion of 1:1 plus chicken dung 15kg/m^3 also had a good physical and chemical properties, increasing the yield by 16%, but its cost is lower than using peat and the soil structure was also improved.

另外，玉米芯与土壤比例为1：1，每立方米加15kg鸡粪的基质的理化性质也较对照有很大改善，使产量增加了16%，成本比使用草炭低，并且起到了改良土壤的作用。

As reinforced by cement, the soil's physical and mechanical properties could be improved much better. Meanwhile, the cement soil is economical, applicable and convenient to construct and it has many other merits. Hence, it applies far more in areas of base and slop stabilization, curtain for cutting off water, deep foundation ditch support structure and other projects.

因为土体经过水泥加固后，其物理力学性质能得到较好的改善，同时水泥土还具有经济适用、施工方便等优点，所以在地基加固、止水帷幕、边坡加固与稳定、深基坑支护等方面得到很广泛的应用。

A combination of silty soil with dredged soil to enhance the geoenvironmental properties was investigated by series of laboratory tests involving adsorptivity and diffusibility which were mainly cared in clay liner of landfill.

等温吸附试验和扩散试验的结果表明：粉质粘土掺入疏浚土后，对金属离子的吸附能力得到增强，尤其对高价Cu2+的吸附能力显著提高，同时可以显著地降低Cu2+的扩散系数。

This paper analyses and calculates the plow parameters about two kinds of high speed plows LEMKEN and KUHN, and studys the relation between the geometric parameters of shape of moldboard plow surface and soil properties, plowing quality, forces properties, plowing speed, resistance and energy dissipation during the plowing. Then according to the direction of developing high efficiency and saving-energy agriculture, under the premise of good farming quality this article puts forward a kind of method setting the mathematics model about plow resistance through the new cultivation principle and the new design principle.

本文通过对比分析的手段对LEMKEN和KUHN两种高速犁参数两种犁体曲面参数进行量化分析计算，分析犁体曲面形状的几何参数与耕后质量、土壤的力学特性、耕速、阻力和功率消耗等相关关系，结合目前高效节能型农业的发展方向，提出在保证作业质量的前提下，应用新型耕作理论和新型设计理论建立牵引阻力数学模型。

Soil physico-chemical properties and variability in space and time in tillaged-layer of paddy, dry field and vegetable field in different physiognomic areas were analyzed. The variation characteristics for various soil nutrient elements in the three different types of farmland before and after twenty years were explored and compared.

不同区域间表现出江汉平原及鄂中丘陵区，高产田面积大(占70％以上)，而鄂东沿江丘陵区中低产田所占比例大(占75％以上)。20年间不同区域耕地地力变化表现出，丘陵区耕地面积大幅减少，耕地质量明显下降；平原区耕地面积虽有所减少，但减幅不大，耕地数量和质量保持基本稳定。2。

In this paper,taking several typical control types of Three Gorges reservoir area as the example,the effect factors, characteristics and rules of the soil erosion and its diversification of the soil physical and chemical properties under different vegetation types were studied by large numbers of pilot field survey and positioning observation.

占总面积66.3%的山区旱坡地是三峡库区江河泥沙的主要来源，为了控制三峡库区水土流失，科技人员对三峡库区坡耕地土壤侵蚀进行了大量的调查研究，但对于构建不同植被类型下的水土流失特征及其生态效应研究还停留在定性描述的阶段。

In order to investigate the relationship of solubility between vanadium and the other co-existing ion in soil. The phase equilibria of the quinary systemNaVO_3 + KVO_3 + NaH_2PO_4 + KH_2PO_4 +(NH_2)_2CO + H_2O and its five quaternary sub-systems were studied at 298K with isothermal dissoluble method. According to the reference, all these systems are not reported yet. The solubilities and the physico-chemical properties such as density, conductivity, pH value and refractive index of the equilibrium solutions were determined. Based on the determined values, the solubility stereo-diagram and projected-diagram( saturated with KVO3), projected-diagramsaturated with (NH_2_2CO, and water content diagram of the quinary system, isothermal solubility diagrams of the quaternary sub-systems, and the physico-chemical properties-composition diagrams of the equilibrium solutions were plotted.

为探明土壤中钒的溶解性同土壤中主要共存离子间的关系，本论文采用等温溶解平衡法研究了文献中还未见报道的五元体系NaVO_3+KVO_3+NaH_2PO_4+KH_2PO_4+(NH_2)_2CO+H_2O及其五个四元子体系298K相平衡关系，测定了这些体系298K时各组分的溶解度及平衡液相的密度、电导率、pH值和折光率等物化性质，并绘制了五元体系溶解度空间立体图，以KVO_3为饱和的投影图，以(NH_2)_2CO为饱和的投影图、水图及四元子体系的溶解度等温图、水图和平衡液相物化性质一组成图。

The effect of varying soil properties on axial seismic response of buried pipelines is studied considering the interaction between the pipe and the soil.

考虑管线与土壤之间的相互作用，研究了土壤性质改变对埋地管线轴向地震响应的影响。

On the basis of the former researchers,the soil physical-chemical properties and the change of the soil nutrients during the growth periods of the winter wheat and the summer maize were studied.

本试验是在前人研究的基础上，对冬小麦、夏玉米施用EM堆肥后的土壤理化性质状况和土壤养分含量及生育期内的变化进行研究。

The treatment effect analysis of underpass back filling lime-soil behind abutment;2. But in practice, there is a little knowledge about the properties and monitoring of lime-soil .

灰土已作为一种廉价的建筑材料广泛应用于交通、土建工程中，但在工程实践中对灰土的工程性能及施工检测还缺乏足够的认识。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。