土的
- 与 土的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The paper fristly compared the fertile soil with the incinerated sterile soil on the number of micro-algae , soil pH value , soil organic matter soil available phosphorus and soil nitrogen.And then, the author put fertile soil, which included micro-algae, proportionally into sterile samples and cultivated them respectively under illumination condition (micro-algae can live and reproduce)and dark condition(micro-algae will die in some time).The above indices were measured in 0, 30, 60 and 90days respectively, The analyse of the interrelation between the change of micro-algae"s number and the changes of soil pH value, soil organic matter, soil available phosphorus and soil nitrogen indicated:Soil micro-algae which were native to fertile soil conld adapt to the changed circumstance and light acted as a decisive role to the distribution of soil micro-algae.Under dark condition,the micro-algae"s number declined gradually and went to zero in the end,while under illumination condition ,on the 90th day, the micro-algaes number of per gramme was 6-7 times more than that of the beginning.
本文首先对肥沃土壤与经高温焚烧后的贫瘠土壤中的微藻数量、土壤pH值、有机质含量、有效磷含量和全氮量进行比较研究,然后将包含微藻的绿化苗圃地肥土按不同比例接种进入贫瘠土样中,分别在光照条件和黑暗条件下进行培养,在0天、30天、60天和90天分别检测以上指标,比较有光条件和无光条件下,即有藻条件和无藻条件下贫瘠土样所发生的变化,并分别对微藻数量的变化与土壤pH值、有机质含量、有效磷含量和全氮量的变化之间做相关性分析,以评估肥沃土壤中的微藻接种进入贫瘠土壤后的生长情况以及对贫瘠土壤的改良作用。
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Then the pile-soil stress characteristics and stabilizing mechanism of the composite foundation are fully discussed. Based on the close analysis of the influence factors of the vertical bearing capacity, circular aperture extension theory is employed to establish the computing formulas for the pile vertical stress and the foundation vertical bearing capacity, respectively. Moreover, with analyzing the features of the calculation parameters such as materials of gunite mortar, jet pressure, diameter of the jet pipe, pile length, pile layout, a design theory for chemical churning pile composite foundation is proposed. Then, the variation of the pipe deformation with loads, the deformation coordination of pile and soil are studied. And methods to decide pile-soil stress ratio and the compressive modulus are developed. Meanwhile, the corresponding design method and the design parameters are proposed. In addition, studies for construction technique and quality detection of the chemical churning pile composite foundation are presented.
在此基础上深入探讨了旋喷桩的桩土受力特性及其复合地基的加固机理,从影响旋喷桩复合地基竖向承载力的因素入手,基于圆孔扩张理论给出了桩体竖向应力及旋喷桩复合地基的竖向承载力计算公式;通过对喷射浆液、喷射压力选取、喷射直径估算、桩长及桩位设计等各种计算参数的深入分析和研究,提出了一套相应的旋喷桩复合地基设计计算方法;通过计算分析,深入探讨了旋喷桩复合地基变形随荷载变化规律、桩和桩间土变形协调关系、桩土应力比及复合地基压缩模量的确定,并提出相应的设计方法和修正参数;此外,结合工程应用,对旋喷桩复合地基的施工技术及其现场质量检测方法进行了较全面的探讨。
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The size of Phoebe relative to Iapetus has been enlarged to better show Phoebe.
土卫10与土卫八相比明显放大以便更好的显示。
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Some moisture content can improve the penetrability of the compound impregnant in heartwood of Chinese fir.
在较低蒙脱土质量分数下,杉木/蒙脱土纳米插层复合材的吸湿性、吸水性、尺寸稳定性、抗水流失性、顺纹抗压强度、耐磨性、氧指数等性能均较酚醛树脂浸渍木有一定提高。
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Producing regions in Italy. With its rich moraine
一。因其拥有肥沃的冰碛土和火山土,悠久
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Soil nailing is more and more widely used in soft soil ground in our country in recent years.
近年来,土钉支护在软土场地得到了越来越广泛的应用。
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Acquire settlement difference ±δ key parameter between inner fill column and outer fill column from practical measure, also confirm that ±δ is a compositive parameter that can reflect all influence factors of vertical soil pressure surely.
从实测中获得内外土柱沉降差±δ这一关键参数,并证实±δ的确是一个能反映垂直土压力各种影响因素的综合性参数。2。
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The adsorption of Butachlor in four main types of soils (black soil, paddy soil, saline soil and planosol soil) in Northeast China was studied in this experiment.
试验对除草剂丁萃接在东北地区主要土壤黑土、水稻土、盐碱土、白浆土中的吸附进行了研究。
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If there is large-area fill, riprap stone or stacking fill nearby, negative friction will occur on the pile which is driven into compressible soil.
支承于土中的桩,如果其附近有大面积填土、抛石、堆载等,很可能会在桩侧产生负摩阻力。
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The effect of incision for crop stubble and ruderal was improved significantly.
试验结果表明,带圆盘刀式深松机性能较好,相比立柱式深松机和带松土铲深松机,牵引阻力、油耗及松土沟的沟宽都有所降低;对作物残茬和杂草切割效果明显。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。