查询词典 particles

There are two focus included as the following two topics:The measurement of equilibrium charge of dust particles in the plasmas By studying the forces acting on dust particles at the equilibrium position, where, the electric force and gravity force are importantly considered, the equilibrium charge of dust particles can be presumedly calculated according to the relation of the forces.

文中着重进行了以下两个方面的研究：一、等离子体中尘埃粒子平衡电荷量的测量通过研究尘埃粒子在平衡位置处的受力情况确定尘埃颗粒所带的电荷量。主要考虑两种力的作用即尘埃粒子所受的电场力和重力。根据这两种力的平衡关系就可以粗略得出尘埃粒子在平衡位置处的电荷量。

Among these particles, the prismy crystals and regular cubic crystals were specifically identified as sulfates of Ca and NaCl from sea salt respectively. But the spherical, fractal and sheet-like particles have very diverse compositions. b The composition of fractal particles is the most complicated, and that of spherical ones is less complex.

其中，棱柱形长棒晶粒和规则的立方形晶粒具有特定的组成，分别为钙的硫酸盐和来自海洋的NaCl晶体，而球形、块状和片状颗粒元素组成变化较大。b块状颗粒的化学成分最为复杂，球形颗粒其次。

Carbon black particles had propensity to redeposit on the fiber surface or inside the fibers and those redeposited ink particles were very difficult to be dislodged. The redeposition of carbon black particles whose size ranged between 0.5μm and 3μm was the main reason for brightness loss.

水性油墨粒子易于沉积在纤维表面或细胞腔内，而且一旦油墨粒子沉积于细胞腔内便很难被去除，直径在0.5～3μm之间的水性油墨粒子再沉积于纤维表面或内部是导致白度降低的主要原因。

The dispersion mechanism of the dispersants was analyzed by testing the Zeta potential of the dispersion phase in the dispersion medium. It was shown that Ⅰ and Ⅱ raised obviously the absolute values of surface Zeta potential of titania particles, and NK-1 formed good solvate layers of the particles so that the nano-titania particles were stably dispersed in the water solns.

通过测定分散相在分散递质中的Zeta电位，分析了分散剂的分散机理，说明六偏磷酸钠和硅酸钠可显著提高整理液中二氧化钛颗粒表面Zeta电位的绝对值，NK-1在纳米二氧化钛颗粒表面形成良好的溶剂化层，使纳米二氧化钛颗粒在水溶液中获得优良的分散稳定性。

Although the dispersion of particles with the Stokes numbers far less than or of the same order of 1 are insensitive to the changes of inlet velocity differences, the dispersion of particles with Stokes number much larger than the order of 1 are influenced by the coherent structures under U〓/U〓=α=0, where α=0 means the particles are released into the flow in stationary state.

在目前国内开展三维N-S方程大涡模拟还非常困难的情况下，本文以两相平面湍射流为对象，不采用流动对称性假设，成功地用大涡模拟方法预报了平面湍射流拟序结构的产生、发展及大涡的合并破碎全过程，和F.O。

The minimum fluidization velocity has a minimum value when the frequency of sound waves is 120Hz and it will decrease as the sound pressure level increases. The degree of sound attenuation will increase while bed material is higher and the fluidization quality of fine particles will become poor and the minimum fluidization velocity will increase. Compared with TiO2, the SiO2 fine particles have a better quality of fluidization at the same fluidized conditions.The cluster/subcluster model and oscillators model are used to describe the fluidization characteristics of fine particles in a sound-assisted fluidized bed. The theoretical calculations show that the minimum fluidization velocity umf is decreased with the SPL increased at the same frequency of sound and the quality of fluidization is better.

论文还系统的考察了声压和频率对纳米SiO2和TiO2颗粒流化特性的影响，结果表明：在频率一定的情况下，声压越高，流化床中形成的聚团尺寸越小，最小流化速度越低，流化质量越好；当声压低于120dB时，声场对超细颗粒流化特性的影响减小，当声压大于130dB时，则能显著改善流化效果，使流化床内的颗粒聚团明显减小，最小流化速度明显降低，粉体带出减小；声压一定，频率为120Hz左右时，最小流化速度最低，此时流化床中形成的聚团尺寸最小，流化效果最好；超细颗粒达到较好的流化状态存在一个最佳频率范围，随着声压增高，这个频率范围将增大。

Unshaded – The particles do not use lighting and are always full bright. Unfogged – Particles ignore distance fog. Replaceable texture – Can be set to team glow to create procedurally colored glowing particles for a unit.

未着色的：粒子将不使用灯光而永远是白色的自发光效果无雾化的：粒子将不会使用迷雾效果可置换贴图：可以为单位自动生成队伍发光效果。

With the addition of the agglomerant solution, the particle emission concentration in flue gas decreased significantly.The submicron particles agglomeration technology whose cost is cheaper can control the emissions of submicron particles and decrease the opacity of flue gas obviously without changing the operation parameters of the ESP.The particle agglomeration technique is a useful and promising method to control the emission of submicron particles from coal combustion.

结果表明，化学团聚对于超细颗粒物的脱除具有显著的作用，喷入团聚促进剂后的烟尘排放浓度远比无团聚和喷水的情况要低；团聚促进剂的高分子链对超细颗粒的吸附絮凝作用促进超细颗粒团聚，显著降低烟尘排放浓度，实现超细颗粒物经济高效脱除，达到国家新的烟尘排放标准。

The results show that as for the as-cast castings, eutectic Si particles are characterized as fibrous or long acicular shape as well as in homogenous distribution, and the impact absorbed energy varies from 1.17 to 2.35J. After T6 heat treatment, the eutectic Si particles become small granular or short bacilliform, and the aspect ratio and area fraction of Si particles decrease evidently. The energy of the T6-treated castings is 1.45-3.80 J, which is higher than that of the as-cast castings. Furthermore, the fracture mechanisms of different regions in the castings were analyzed and discussed.

结果表明：铸态下共晶Si粒子大多为纤维状或长针状，呈不均匀的网状分布，冲击吸收功在1.17~2.35J的范围内变化后；经T6热处理后，团簇状Al-Si共品相明显减少，共晶Si粒子呈现出粒状或短棒状，且细小均匀，Si粒子的长宽比和面积分数都有显著降低，冲击吸收功在1.45~3.80J的范围内变化，比铸态有明显提高。

The results show that the shape of fly ash particles is various. Most particles are irregular, some are baculiform and very few particles are spherical and flocculent.

实验结果表明，飞灰颗粒形态多样化，其中以不规则形状聚合体居多，球形体、絮状集合体相对较少，少数颗粒为棒状集合体。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。