查询词典 particles

The results shows that the flow characteristics of SiC-AlN granulated powder is obviously promoted after spray drying and a suitable particles grade match. With the increasing of pressure, the density of green body increases by the style of ladder at the pressure range of 4080 MPa, 80160 MPa and 160220 MPa, the green body is uniform and densification without hard pelleted particles above 160 MPa. The pressureless sintering SiC-AlN multiphase ceramic possesses superior sintering properties and mechanical properties. It is due to the rampart formation of AlN to SiC grain growth and the reaction of SiC and AlN to form 2H solid solution. It results in the grain fining, crack expansion producing bypass and deflection, fracture section producing tearing-open and pulling-out effects, which cooperatively improves the strength and fracture toughness of the multiphase ceramics.

结果表明：喷雾造粒后，复合粉体的流动特性显著提高，粒度级配合理；随着压强增加，坯体密度在40~80、80~160和160~220 MPa范围内呈现阶梯式增长，160 MPa以上成形后素坯均匀致密，无硬球颗粒存在；无压烧结SiC-AlN复相陶瓷具有优越的烧结性能和力学性能，这是由于AlN对SiC晶粒形成生长势垒，并反应生成2H型固溶体，从而细化晶粒，导致裂纹扩展产生了绕道与偏转效应，呈现晶粒撕裂与拨出现象，协同改善了复相陶瓷的强度及断裂韧性。

The simulated results showed that in cooling tube the thermophoresis force had removing effect on the diesel engine particles,and it is possible to increase the deposition efficiency of diesel engine particles in cooling tube by rational design and control of the cooling tube structure and working parameters.

研究结果表明，热泳力对柴油机微粒具有一定的脱除作用，通过合理设计和控制冷却通道的结构和运行参数，可以有效地提高柴油机微粒在冷却通道中的沉降率。

As the magnetosphere wave scattering of particles, as well as the particle charge exchange reaction, the ring current particles will continue to disappear.

由于磁层波对粒子的散射作用，以及粒子的电荷交换反应，环电流粒子会不断消失。

The fly-ash particles in the composite are distributed homogeneously and the interfaces of particles and matrix are well-combined.

该复合材料中电厂飞灰颗粒分布均匀，与基体合金的界面结合良好，并显示了优良的耐磨和抗震性能。

The results show that the composite is dense and silicon particles are distributed uniformly. Transmission electron microscope observations show that stacking faults with high density, twins and dislocations are found in silicon particles. The Si-Al interfaces are well-bonded and no interface reactants are found. The dislocations and eutectic silicon precipitates are observed in LD11 matrix. Sip/LD11 composite has low density of 2.4 g/cm3, low coefficient of thermal expansion of 8.1×10-6/K, high thermal conductivity of 161.3 W/, and the annealing treatment can reduce the CTE and improve the thermal conductivity.

研究结果表明：复合材料组织致密，颗粒分布均匀；透射电镜观察发现，在Si颗粒内部存在高密度的层错，同时还存在孪晶和位错； Si-Al界面结合状况良好，无界面反应物； LD11铝合金中存在位错和析出的共晶Si；复合材料具有低密度(2.4 g/cm3)，低热膨胀系数(8.1×10-6/K)，高热导率161.3 W/(m·K的特性，可以通过退火处理进一步降低其热膨胀系数，提高热导率。

Our works discuss the magnetic characteristics of wasp-waisted hysteresis loops and outline a rationale for this type of behavior by superposition of hard and soft magnetic phases. Because of the absence of magnetic interactions between particles, in measurement procedure, we could sum the magnetization mathematically of the isolated particles at each field value to create a composite hysteresis loops.

进一步再以复合模型磁相叠加的特性，以考虑忽略软硬磁晶粒间彼此交互作用的前提下，将软磁与硬磁的磁滞曲线以线性叠加得到不同磁场强度下各材料的磁化强度以描绘出该复合模型的磁滞曲线，并发现磁相叠加与实际量测的磁滞曲线虽相近但仍有其差异，而其差异则系由於软硬磁混合样品中其晶粒间仍有交互作用之存在。

In order to explore the influence of the interactions between particles and between gas and particles on the formation of heterogeneous flow structure, a computational study was carried out by using a two-fluid model based on the particle kinetic theory.

应用双流体模型 CFD模拟的方法，从恢复系数和曳力两方面，研究了气固密相流化床中颗粒之间和气固相之间的相互作用对床内非均匀流动结构形成与变化的影响。

Rapidly solidified AZ91 magnesium alloy powders and the Mg-based composite material reinforced by SiC particles were produced by twin-roller atomization method and powder metallurgy, respectively. The microstructure, phase compositions and interface characterization between Mg matrix and reinforcing particles of AZ91/SiCp composite material were investigated.

摘 要：采用双辊雾化法制备快速凝固AZ91镁合金粉末，并用粉末冶金方法制备SiC颗粒增强的镁基复合材料棒材，研究AZ91/SiCp复合材料的微观组织、相组成及增强相与合金基体间的界面结构特点。

Larger particles are sucked from the receiver 8 into a sand pump 6 via a pipe 5 so as to be returned to the tower shell 1 wherein the larger particles are again subjected to pulverization and leaching.

较大颗粒则是将从接收机 8 成砂泵 6 透过管道 5 ，以归还给塔壳里一大颗粒再次遭到粉碎和浸出。

The location of the modal particles (3) the selection restriction of modal particles and their location by the language style, structure, syllable and tone.

句中语气词的选择限制具体讨论三个问题：(1)在单句句中，哪些语气词能够出现，哪些语气词不能出现。

It's bell can reach over a meter in diameter.

它的身体最大可以达到直径1米多。

Now they are overdue and I shall have to pay a fine.

现在他们过期了，我不得不付罚款。