质点

In terms of quantum mechanics, the principle of material point abstraction does not apply, in discussing problems of atoms. The shape can be neglected when built by micro object as wavelength of material wave.

量子力学在讨论原子问题时，质点抽象原则不适用，用物质波波长为微观客体建构的"形"不能忽略不计。

Analyzed temperatures distribute during roughing roll and the effect of rolling parameter to draught pressure,analyzed the effect of rolling parameter to railhead and extension of heavy rail. At last,the research analyzed metal point's flow characteristic and revealed deforming regularity of heavy rail.

分析了在粗轧过程中温度场的分布以及轧制过程中轧制参数对轧制力的影响规律，分析了轧制参数对轨头、轨底宽展的影响规律，最后还分析了金属质点流动特性，揭示了重轨的变形规律。

Analyzed temperatures distribute during roughing roll and the effect of rolling parameter to draught pressure, analyzed the effect of rolling parameter to railhead and extension of heavy rail. At last, the research analyzed metal points flow characteristic and revealed deforming regularity of heavy rail.

分析了在粗轧过程中温度场的分布以及轧制过程中轧制参数对轧制力的影响规律，分析了轧制参数对轨头、轨底宽展的影响规律，最后还分析了金属质点流动特性，揭示了重轨的变形规律。

We investigate this data and derive the following rules to process tunnel refection seismic data: Based on their different particle trajectories and propagation speeds and shear waves need to be separated from tunnel waves, air waves, and background noise.

通过研究这些数据，得出如下一些处理隧道反射地震数据的规则：根据不同的质点运动轨迹和传播速度把压缩波和剪切波与隧道波、空气波和背景噪音分离开来。

The results show that the microstructures of these three kinds of coating are different from those of the matrix (20 steel). The wear resistance of the flame spray coating is 4. 9 times that of the matrix. This is caused by the existance of hard noncrystal microparticals. The wear resistance of the coating by flame spray welding is 6. 3 times that of the matrix. The reason is that the fine crystal grains can be formed and the solution strengthening, dispersion hardening can be induced by these alloy elements. The resistance of the laser remelt coating is 8. 8 times that of the matrix. This is due to the solution strengthening, dispersion hardening and the existence of very hard dendritic crystal, eutectic and martensite in the microstructure.

作者指出，喷涂层由于层内有一定数量高硬度的合金非晶质点存在，其耐磨性是钢基体的4.9倍；喷熔层内合金晶化产生的晶粒细小，合金元素能起固溶强化作用，也能生成化合物产生弥散硬化作用，故此耐磨性是钢基体的6.3倍；激光涂敷层除所含合金元素产生的固溶强化和弥散硬化作用外，表层组织为高硬度的枝晶+共晶和马氏体，故其耐磨性是钢基体的8.8倍。

Reproducing Kernel Particle Method is one of the promising meshfreemethods with attractive features.

重构核质点法(Reproducing Kernel Particle Method，简称 RKPM)是一种有广泛发展前景的无网格方法，具有优良特性。

It can measure peak particle, peak displacement, peak particle acceleration, frequency at the peak velocity and the resultant peak partide velocity, peak sound , and frequency at the peak sound in three dimensions.

NCSC 5300是便携式固化计算机控制的测震仪，可以调出测点的三维振动速度、振动加速度、质点振动位移、振动频率和噪声强度、噪声频率，打印出测试结果及振动频率与三维振动速度的关系图、三维振动波形图，是理想的爆破测震仪器

The protein spots were visualized by silver-based staining technique with the protein silver stain kit.

用银染试剂盒进行硝酸银染色使凝胶中的蛋白质点可视化。

Results: Average protein spots were 426 in the diarrhoea-predominant IBS group by using Coomassie brilliant blue staining, while the constipation-dominant IBS group by using silver staining got average 581 protein sptos.

结果：考马斯亮蓝法染色用于腹泻型IBS患者，平均得到蛋白质点426个；硝酸银染色法用于便秘型IBS患者，平均得到蛋白点581个。

The sound field separation technique based on single surface measurement is investigated in this paper.

在近场声全息技术的基础上，研究了基于声压-质点振速测量的单面声场分离技术。

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。