团聚体

黑钙土中>0.25mm粒级的水稳性团聚体百分含量增加，阳离子交换量提高，土壤pH值下降。

The percentage content and cation exchange amount of aggregate stability of chernozem ( > 0 . 25 mm ) increased , but the pH decreased .

不同土壤团聚体粒径对Birch效应的影响强度不同，但二者并不是简单的线性关系。

Different soil aggregate grain size of Birch effect of strength different , but both and is not a simple linear relationship .

紫色水稻土水稳性团聚体土壤微生物基因组DNA提取方法探讨

Microbial DNA Extraction Method on Soil Water-stable Aggregates about the Purple Paddy Soil

热处理对喷雾干燥制备的Al2O3纳米团聚体粉末的影响

Effect of heat treatment on spray-dried Al_2O_3 nanocrystalline powder

PAM特性参数对土壤团聚体稳定性的影响

Influence of PAM characteristic parameter to stability of soil cluster

DR和CDI值越大，土壤微团聚体稳定性越差，土壤抗蚀性越差。

Micro-aggregate stability and soil anti-erodibility is poor as DR and CDI increasing .

通过XRD及SEM分析，冲击波对HA团聚体粉末具有明显的均化与细化作用，并产生了一定程度的晶格畸变。

The grain size refinement , homogenization and dislocation of lattice in shocked HA powders were analyzed by XRD and SEM .

采用TEM和AFM观察了它们的形貌，发现：大多数接枝炭黑形成了具有核/壳结构的纳米团聚体。

TEM and AFM observations showed that these water-dispersible carbon black formed spherically nano-sized agglomerates with core-shell structures .

提出了新的团聚参数Na（50），定义为团聚体平均包含粉末一次颗粒的数目。

A new agglomeration parameter N. ( 50 ) defined as the average primary particle number included in each agglomerate is proposed .

施用不锈钢尾渣能显著提高土壤和淋溶液pH值、有机质及土壤总团聚体；而对土壤阳离子交换量作用不显著。

Adding stainless steel tail slag can significantly improve the pH value of soil and leaching solution , organic matter and soil aggregates ; but soil CEC did not increase significantly .

此外，导出了团聚体的平均Stokes球径与团聚体相对密度的关系。

In addition , the relations between the average Stokes diameter and the relative density of the agglomeration has been inferred .

棕壤各粒级微团聚体及组成成分对Cu～（2+）、Cd～（2+）吸附特性和吸附机制影响的研究

Analysis of Adsorption Character and Mechanism of Cu ~( 2 + ) Cd ~( 2 + ) on Component in Brown Earth and Several Different Particle Fractions of Microaggregates Extracted from It

所以，静电场作用下的腐殖质和PAM提高团聚体稳定性的详细机理还有待于深入的探讨。

Consequently , it needs to explore in depth the detailed mechanism of promoting aggregates stability by humus and PAM in the electrostatic field .

结果表明，不同粒径的微团聚体颗粒对Cu2+的吸附等温线可都用Freundlich模型来描述。

The sorption of Cu2 + under different size fractions of micro-aggregates fitted well with the Freundlich Isotherm .

沉淀法制备纳米ZrO2粉末过程中团聚体形成与控制的研究

Investigation of the Formation and Control of the Agglomerates during the Preparation of Nanometer ZrO_2 Powder by the Precipitation Method

因此，水稻土不同粒径团聚体颗粒中有机碳及其组分的性质影响着这些团聚体颗粒组分对PAHs的吸持与固定。

Thus , retention of PAHs in soil aggregates of the paddy soils are modulated by soil organic carbon and its property of reactive groups .

经TEM观察得到，SWNT-g-PtBMA能够以纳米尺度的团聚体较均匀的分散在聚合物基体中。

TEM observation shows that SWNT-g-PtBMA disperse homogeneously in polymer matrix with nanometer scale .

相对腐殖质而言，PAM可明显提高稳定性较差的Na+体系团聚体的稳定性，使其破坏强度降低90%以上。

Comparing with humus , PAM could evidently increase stability of Na + - aggregate ( which was weak stability ), the breaking strength decreased by90 % .

结果表明：（1）随着海拔升高，土壤中大团聚体的比例增加，MWD值升高。

The results showed that : ( 1 ) Along the elevation , the proportions of macroaggregates and MWD increased .

苜蓿栽培也显著提高了土壤MBC和MNC含量以及团聚体稳定性。

Conversion of crop field with wheat-maize rotation into clover cultivation also greatly improved soil MBC , MNC , and soil aggregate stability .

T3、T2团聚体发育差，缺乏多级孔隙，形成的高径流量和溅蚀率使T2、T3的产沙率在相对大的数值范围内变动。

The stability of aggregates of T3 , T2 was very low and multilevel pore was few , so soil splash erosion and sediment was very high .

在所有土样的三种处理和三种团聚体大小中，大团聚体的＊5处理MWD值最大。

All of the three treatments and three initial sizes , MWD value was the biggest produced by big aggregate after WS treatment .

而含量较高（不低于5%）的实心纳米SiO2将在环氧树脂基体中产生大量团聚体，使复合材料的拉伸强度降低。

When the content of solid nanometer-SiO_2 was equal to or more than 5 % ( mass fraction ), the tensile properties of the composite decreased because of the agglomerates of nanometer-SiO_2 .

通过温室模拟试验，研究人工土壤，经不同分子量和电荷密度PAM处理后团聚体水稳性的变化状况。

The water stability of soil cluster is studied after the treatment of different molecular weight and charge density PAM of artificial soil by way of simulation test in the hothouse .

黄绵土表土水稳性大团聚体（0.25mm）粒径越大，其中的有机碳含量越高。

The larger the water stable macroaggregates , the higher organic carbon content in them .

机械振荡和化学试剂分散振荡两种处理后的团聚体分布和平均重量直径（MWD）均具有显著差异，化学分散剂加剧了机械振荡的破坏作用。

The particle size distribution ( PSD ) and mean weight distribution ( MWD ) after mechanical shaking treatment and chemistry dispersion treatment , were significantly different .

球磨得到的WCCo纳米复合粉末颗粒形貌基本为球形，粒径分布较宽，颗粒中存在着一些团聚体，平均颗粒尺寸约为50nm；

The grain size distribution is relatively wide . The morphology of nanocrystalline WC Co composite powder displays approximately sphere shape and the mean particle size of the powder is about 50 nm .

团聚体MWD和GMD值的规律表现为：鱼塘底泥自然湿地退耕地水稻田荒地菜地。

Range of MWD and GMD values of aggregates is : fishpond sediment natural wetland returned farm-land paddy field wasteland vegetable plot .

土壤不同层次水稳性团聚体中POC的来源不同，在0~5cm表层可能主要来源于作物根茬生物量，而在5~15cm土层则可能跟施入的外源有机物有关。

Regression coefficients showed a possible source of POC in water-stable aggregates from increased crop biomass in topsoil ( 0-5cm ) and organic matter applied in sub-surface layer ( 5-15cm ) .

研究发现，采用单一的分散工艺，纳米TiO2在UP体系中均有大量团聚体的出现，而通过复合分散工艺，则可以使纳米TiO2在基体中达到一种均匀的纳米级的分散。

The result indicated that the nano-meter TiO2 had a large number of the appearance of aggregate if a single dispersion technology was used , but when complex dispersion technology was used , the nano-meter TiO2 could disperse in UPR at nano-meter level .