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。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。