查询词典 particles

An intrinsic symmetry property of subatomic particles that is characterized by the behavior of the wave function of such particles under reflection through the origin of spatial coordinates.

本质均衡性亚原子粒子的本质平衡性，以其波函数在通过空间坐标原点的反射下的移动状况为特征

An analytic solution of kinematic model was obtained via Lie transformation group. It shows that the velocity of particles flow is maximum when x=0. Through locating the maximum particles velocity distributing line and taking the line as the origin line of x coordinates, the modified kinematic model could simulate the eccentric discharging well.

通过Lie变换群得到"运动模型"的解析解，发现x=0时颗粒的垂直速度达到最大值，由此在确定颗粒最大速度分布线的基础上移动坐标使该线上x值均为0，对"运动模型"进行了修正，可以反映壁面对颗粒运动的影响，所得计算结果与实验测定吻合得很好。

Beta particles are smaller and carry less energy, but they have better penetrating power than alpha particles.

它们完全的穿透皮肤，如果过度暴晒， B 粒子就会造成皮肤的灼伤，尽管它们需要被吸入或摄入到体内后才会破坏人体内部器官。

In transmission electron microscope spherical particles of the virus could be seen,with peplos, and the whole particles is about 65-70nm in size, distributing in thecytoplasm in cells.

通过电镜观察可以看出该病毒粒子呈球形，有囊膜，大小为65-70nm左右，在细胞中分布于细胞浆。

Objective To investigate the difference in macrophages＇ phagocytosis of ultra-high molecular weight polyethylene particles and Ti-6Al-4V particles.

目的观察巨噬细胞对超高分子量聚乙烯颗粒和钛-6铝-4钒（n-6Al-4V）颗粒吞噬反应的差异。

It was found that the RBSDV particles infected in the maize cell appeared at first in the cytoplasm near the cell wall, some single virus particles seem to be connected with plasmodesma.

的症状发展过程先后取叶脉做超薄切片，在透射电镜下观察病毒在细胞内的侵染状态，并在取样前用灰飞虱无毒若虫进行饲毒和传毒试验。

The result shows that when the emulsifying agent layer not perfectly covering the primary particles' surface or the primary particles' surface being covered with overmuch powder grain, it will lead to the higher plastisol viscosity.

结果表明初级粒子表面的乳化剂层包覆不严或表层粉粒太多，均会导致增塑糊粘度偏高；次级粒子聚结松散，结构脆弱，有较低的糊粘度和触变性；次级粒子聚结紧密，有熔结现象，增塑糊粘度偏高。

Illite fundamental particles showed platy to lath shapes. Platy particles exhibited various spiral growth patterns, i.e. circular, malformed circular, polygonal single unit-cell layer spirals, polygonal parallel step spiral, interlaced spiral patterns, etc.

伊利石单元粒子生长过程中，伊利石单元粒子呈现从板状体到条状体的生长，而板状颗粒又呈现各种螺旋生长图案，有圆形、残缺的圆形、多边螺旋、平行阶梯状螺旋、交错螺旋等。

The simulation results of the two models indicated that the yield strength of the composites in which the particles are assumed all in polygonal shape and the mean stress in particles both decrease with the increasing number of polygonal sides.

两种单胞模型的模拟结果均显示，对于颗粒是多边形状的铝基复合材料，随着颗粒边数的逐渐增大，颗粒的平均受力逐渐减小，复合材料的屈服强度也逐渐降低。

Moreover, the effects of nano silicon dioxide (SiO2) particles and nano SiO2-g-PBA composited particles on the of polyoxymethylene were studied by means of mechanical properties test, scanning electron microscope and TEM.

力学性能、扫描电子显微镜及透射电子显微镜等测试表明：纳米SiO2在POM中团聚明显，而SiO2-g-PBA纳米复合粒子POM中分散均匀，导致POM/SiO2-g-PBA纳米复合材料的缺口冲击强度明显高于POM及POM/SiO复合材料，当SiO2-g-PBA纳米复合粒子的质量分数为2%时，POM/SiO2-g-PBA复合材料的冲击强度是POM的8倍多，同时拉伸强度有一定的增加。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。