砂粒

而土壤P和Mn含量与粘粒和粉粒含量之间均是极显著的负相关，与砂粒含量之间是极显著的正相关；

On the contrary , P and Mn contents were negatively correlated with soil clay and silt contents , but positively correlated with soil sand contents .

氮素累积溶出率与砂粒径呈显著负相关（r为-0.8630～-0.9717），钾素相关性不显著。

The accumulated dissolved ratios of nitrogen were obvious negatively correlation to sand size ( r : - 0.8630 ~ - 0.9717 ), and incorrelate to potassium .

用CO2法硬化水玻璃砂时，影响再生砂制备的型砂性能的主要因素是残留在砂粒表面的碳酸钠盐。

The study of the hardening characteristics of reclaimed CO2 sodium silicate bonded sand shows that the residual sodium carbonate acetate is the primary affecting factor .

并应用Fluent软件提供的离散相模型，对砂粒的流动轨迹、流动速度进行了分析。

And By using dispersed phase model in Fluent , floating track and flow velocity of green sand is analyzed .

缓效钾、有效铜用线性模型拟合。（4）大尺度砂粒、粘粒成块状，中/细粉粒、粗粉粒成条带状分布，中坡位pH较高。

The S-avaiable K and Available Cu were fitting by lineal model . ( 4 ) In Macroscale , sand , clay distributed as blocks , and the Med . and fine silt and Coar .

随着土壤水分、速效磷、极细砂粒、粉粒以及粘粒含量的增加，PH值、速效钾、中砂粒和细砂粒含量的减少，白刺中根和细根系生物量增加。

Root biomass increased with the increasing of soil moisture , available phosphorus , fine sand , silt and clay content , pH value , available potassium , and the sand and fine sand content .

运用Mohr-Coulomb准则和能量守恒定律分别推导单个砂粒滑动判别条件和滚动条件；

Mohr-Coulomb criterion and energy conservation law were applied to deduce the sliding critical condition and rolling condition of single sand .

可见，土壤颗粒组成中粘粒含量和砂粒含量、土壤中有机质含量是影响PCBs分布的主要因素。

This result indicated the clay and sand contents of soil practical composition , the TOC content were the main influencing factors on the PCBs distribution .

结果12例良性病变平片显示与肋骨长轴一致的囊性破坏者10例，4例伴有砂粒状钙化，6例恶性肿瘤均显示边界清楚的溶骨性破坏，CT显示软组织肿块突人胸腔。

Results of the 12 benign cases , 10 cases showed cystic destruction paralleled to the long axis of rib , 4 cases complicated sandy calcification . 6 malignant tumors showed clear boundary osteolytic destruction and there is soft tissue protruding to thoracic cavity on CT .

结果表明：（1）土壤∑REE和∑LREE均与土壤砂粒含量呈显著负相关，与粘粒含量呈显著正相关；

The results were as follows : ( 1 ) The negative correlations between ∑ REE , ∑ LREE and soil sand content , the positive correlations between ∑ REE , ∑ LREE and soil clay content were significant .

实验结果表明，对同一种砂粒试样，由于砂粒浓度造成的散射光的强度和分布的不同，对Sauter平均直径的测量结果基本上没有影响。

The experimental result shows that the different intensity and distribution of scattering light , which are induced by different concentration of sands under the same sample , have no effect on the results of measurement .

不同粒径组分中的有机质对Phe富集能力的大小顺序为粗粉粒细粉粒细砂粒粗砂粒粘粒，对Bap的富集能力为粗粉粒粗砂粒细粉粒细砂粒粘粒。

The enrichment ability of organic matter for Phe in different particle-size separates decreased in the order coarse silt fine silt fine sand coarse sand clay , and for Bap in the order coarse silt coarse sand fine silt fine sand clay .

本文沿用Barth稀相气力输送理论，在试验基础上，得到在水平管内作密相气力输送时，砂粒在各种工艺参数下的附加摩擦阻力系数的经验关联式。

Based on the experiments and along with Barth 's dilute pneumatic conveying theory , several empirical equations for calculating the additional friction factor are obtained with the various technological parameters in the dense phase pneumatic conveying system with a horizontal pipe .

土壤机械组成：与农耕地相比，各种模式中的上层（0～20cm）土层中砂粒含量明显低于农耕地砂粒含量，而细粒径中粘粒、物理性粘粒含量显著高于农耕地。

Soil mechanical composition : In the top soil ( 0 ~ 20cm ), the amounts of sand of different patterns of converting lands into forests was lower than that of farmland , while the amounts of clay and physical clay was higher than that of farmland .

不同密度柠条对土壤理化特性的影响：2490丛/hm~2柠条草地土壤的紧实度和2.0～0.2mm粗砂粒含最低，0.2～0.02mm的细砂粒含量最高，1665丛/hm~2次之。

Intermedia on soil physical and chemical character : the soil tight degree and the content of 2.0-0.2 mm Sand granule of C. intermedia grassland of 2490 clusters / hm2 were the lowest and its content of 0.2-0.02 silver sand was the highest , and C.

人脑脉络丛内砂粒体的免疫组织化学研究

Immunohistochemical studies on psammoma bodies in choroid piexus of human brain

引入弹性恢复系数法描述砂粒间碰撞问题。

The restitution coefficient was applied to describe the impact problem .

这种装置在小型冲天炉中是作为砂粒分离器使用的。

These units are employed as grit arrester on small cupola .

运用涂铁砂粒进行分散式饮水除砷的效果

Removal of Arsenic from Dispersed Drinking Water by Iron Oxide-coated Sand

树脂砂原砂粒度对强度的影响

Effects of grain size of roughing resin sand on strength

粗砂粒组和粘粒组对芘的吸附能力较大，细砂粒组和粉砂粒组相对较小。

Thus coarse sand and clay had larger capacity for pyrene sorption .

石英砂粒表面微结构特征的研究

Research on the Features of Surface Micro - structure of Arenaceous Quartz

把你头发里那些大城市的砂粒都洗掉。

Get all that city grit out of your hair .

环氧树脂/石英砂粒状包覆体的制备及结构形态

Preparation and structural morphology of epoxy resin / quartz sand coated particles

人工岩样的砂粒配比研究及应用

Research and application of sand grain matching of artificial rock

型砂砂粒间粘土膜的流变特性

Rheological behaviour of bentonite film between grains of molding sand

自动冲洗砂粒，防止砂卡柱塞；

Washing sand particles automatically to prevent the plunger stuck ;

特殊设计扩散板，砂粒浮起均匀柔软。

A specially-designed spreading board enables sand to float evenly and softly .

粉砂粒和粘粒含量提高0.67%和1.53%；

The silt and the clay content enhance 0.67 % and 1.53 % ;

泥砂粒径对泥浆泵性能影响的实验研究

Experimental study of effect of particle size on characteristics of a slurry pump