摩擦电

The angular distribution of the transmission coefficient of HH polarization are obtained by numerical implementation, the influence of the permittivity and the mean layer thickness of intermediate medium, friction velocity and the frequency of the incident wave on the transmission coefficient is discussed.

通过数值计算得到了HH极化透射系数随散射角的变化曲线，讨论了中间介质介电常数和厚度、摩擦风速和入射波频率对透射系数的影响，得到改进的一维分形分层海面透射系数的基本特征、分区特征和随频率变化的特征，结果表明透射系数近似具有"量子化"特征。

The angular distribution of the bistaticscattering coefficient of HH polarization were obtained by numerical implementation. Influences of the permittivity and the mean layer thickness of intermediate medium, friction velocity and the frequency of the incident wave on the bistatic scattering coefficient were discussed. The basic characteristics, the zonal characteristics and the characteristics with varying of frequency of the scattering coefficient from stratified sea surface were obtained. The numerical results show that the scattering coefficient has approximate "quantization" characteristics.

通过数值计算得到了HH 极化双站散射系数随散射角的变化曲线，讨论了中间介质介电常数和厚度、摩擦风速和入射波频率对双站散射系数的影响，得到改进的一维分形分层海面散射系数的基本特征、分区特征和随频率变化的特征，结果表明散射系数近似具有"量子化"特征。

In fact, any two objects friction, can be electric. The mid-18th century, American scientists Franklin through analysis and research, that there were two different nature of electricity, called positive and negative charges.

其实任何两个物体摩擦，都可以起电。18世纪中期，美国科学家富兰克林经过分析和研究，认为有两种性质不同的电，叫做正电和负电。

It is in electricity can one kind form,including negative electricity and positive electricity two kinds, made up of electron and proton they respectively, may be made up of the electron and positive electron too, usually with the static unit such as the static Coulomb(C or the tolerance of electromagnetic unit such as Coulomb(C , from the frictional electricity thing

电是能的一种形式，包括负电和正电两类，它们分别由电子和质子组成，也可能由电子和正电子组成，通常以静电单位或电磁单位度量，从摩擦生电物体的吸引和排斥上可以观察到它的存在，在一定自然现象中也能观察到它，通常以电流的形式得到利用。

5 Material type 材料类型 4.5.1 Antistatic Material: the material that used to prevent / inhibit the generation of the Triboelectric Charge; or the material that only generate less than 200V Triboelectric voltage; it has no requirement about surface resistivity and volume resistivity .

抗静电材料–能抑制摩擦生电的材料；摩擦电压在 200V 以下的材料；防静电材料没有表面电阻率或体积电阻率的要求。

It can simulate charging testmethod, corona charging decay testmethod and triboelectric testmethod. In the part of signal receiver, signals which p resented the electrostatic potential of detected objects were collected by non2contact direct induction type electrostatic sensor. It utilized the capability of counting time of single chip computer to measure p recise electrostatic charge decay time in coordinate with the p rogram designed by C51 language.

它能够模拟充电、电晕喷电、摩擦3种起电方式，接收部分采用直接感应式非接触式静电传感器测量被测材料表面的静电电位，并利用单片机本身的定时计数功能，配合C51单片机语言设计相应程序，测得精确的静电电荷衰减时间。

Cu-C composite is one of the most potential materials for pantograph slide plate, which is an important component of pantograph system in locomotive. The principle of wettability between Cu and C was investigated in this paper. The element of Mo was selected to improve the wettability between Cu and C. The fabrication process of cold compression sintering fiber reinforced Cu-C composite and its effect on the composite property were studied. The wear and friction mechanism of Cu-C composite was investigated initially by electriferous friction test.

Cu-C材料是目前最具应用前景的电力机车受电弓滑板用材料之一，本文研究了Cu与C之间的润湿原理，利用Mo元素有效改善了Cu与C之间的润湿性；并对冷压烧结法制备纤维增强Cu-C复合材料的工艺过程及其对性能的影响进行了研究；通过带电摩擦试验对Cu-C复合材料带电摩擦磨损机理进行了初步探讨。

Electrostatic printing production is a common phenomenon, mainly due to climatic and environmental changes and printing materials, printing equipment on all types of roller, cylinder friction, pressure, separation, friction caused electricity; especially cold and dry winter , static electricity is frequent.

静电是印刷生产中的常见现象，主要原因是由于气候和环境变化及印刷材料、印刷设备上各类辊、筒的摩擦、压力、分离、摩擦生电等造成的；尤其是冬季气候寒冷干燥，静电更是频发。

The application of electro-hydraulic proportional control technology in the test of liner friction coefficient and the testing principles of friction coefficient were introduced.

介绍了电液比例控制技术在衬垫摩擦系数中的应用及摩擦系数测定的原理。

Emphasis is placed on analyzing the influences of friction characteristics on hydraulic motor, dynamic coupling between gimbals, resolution ratio error and setting error of feedback measurement element on accuracy of electro-hydraulic position servo system for a certain simulation turntable.

针对具体的仿真转台电液位置伺服系统，着重分析了液压马达摩擦非线性、框架间动力学耦合、反馈测量元件的分辨率误差和安装误差对转台电液位置伺服系统精度的影响。

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。