查询词典 cathode

It is believed that it is a promising alternative for thermionic cathode and field emission cathode. Since 90s 20th century, many important progresses in ferroelectrics cathode have been made. With the researches on the theory and experiments of this field, many new ferroelectrics devices will come into being and will have important usages in high-tech domain.

自20世纪90年代以来，铁电阴极材料及应用研究取得了许多意义重大的研究进展，随着电子发射机理研究的进一步深入，以及新铁电阴极材料制备技术和电子发射技术的进一步发展，完全可以期望在不久的将来就会有各种新型铁电电子发射器件在不同的高新技术领域发挥重要的作用。

According to the characteristics of high-nickel copper cathode electrolyzation,an analysis is made on the factors of the electrolyte that impacts the surface quality of tough cathode ,and some suggestions are put forward for improving the quality of tough cathode .

针对高镍铜阳极电解的特点，分析研究了电解液对阴极铜质量产生影响的因素，提出了改善阴极铜质量的有关建

The cathode fall region of hot cathode glow discharge is a very narrow area close to the cathode surface.

工作在高压强下的热阴极辉光放电的阴极区是一个紧靠阴极表面、极其狭窄的区域，对于金刚石膜PCVD的沉积工艺不产生直接影响，然而，它是维持辉光放电所必需的关键区域。

Especially, cathode temperature has a strong influence on the discharge property of cathode fall region via its influence on electron emission process. This is one of the most typical properties of hot cathode glow discharge.

特别是阴极温度对放电特性的影响，它是通过热阴极的温度对热电子发射过程的影响来实现的，也是区别于常规冷阴极辉光放电的一个重要放电特征。

The cathode temperature is an important parameter during the studying themechanism on the cathode erosion and cathode electron emission, so we set up adevice of two-wavelength pyrometry.

在研究阴极烧损物理机制和阴极电子发射机理的过程中，阴极温度是一个重要的参数，因而我们建立了一套双波长高温测量系统用于测量阴极温度。

The ECM productivity of inner ratchet wheel is very high. Cathode piece is machined easily using WEDM. Its dimension is nicety. Cathode is not worn down in process,so a piece of cathode can be repeat used to machining tens or several hundred parts. The surface quality of inner ratchet wheel being machined is nice. There is no burr in the surface. Its surface roughness can reach Ra1.6μm.Its ...

应用电化学加工技术加工内棘轮，生产率很高；采用线切割加工片状工具阴极，制作方便、尺寸准确；加工过程中工具阴极无损耗，一片阴极可以重复加工几十至几百个零件；加工出的内棘轮表面质量好，无飞边毛刺，表面粗糙度可达Ra1.6 μm ；加工精度较高。

The effects of structural parameters of target cathode on magnetic field distribution during magnetron sputtering were simulated and analyzed to design a new-type rectangularly plane cathode,then the magnetic field of the designed cathode was simulated and analysed.

文章模拟分析了结构参数对磁控溅射阴极磁场分布的影响，设计了一种新型的矩形平面磁控溅射阴极，并对设计的阴极磁场进行模拟分析，结果表明有效提高了靶材表面磁场分布的均匀性。

The thermionic emission properties of rare earth doped molybdenum cathode and impregnated cathode with sub-micron scandia doped tungsten matrix, and the secondary emission property of rare earth doped molybdenum cathode have been studied in this paper.

研究了稀土钼阴极的热发射、次级发射及亚微米结构钪钨基扩散阴极的热发射性能。

As a nondestructive technique to measure the inner fine structure of the cathode, the ICT has the unique advantage. We discussed the emission mechanism of thermionic cathode, and tried to explain the excellent performance of mixed metal cathode by Richardson formula and Muller's computational model.

就当前钡钨阴极发射机理的两个主要理论模型作了自己的探讨，并初探了钡钨阴极中钡的供应机制及发射寿命预测的问题，而且用理查逊公式的推导和Muller计算机模拟法解释了混合基钡钨阴极的优良性能。

The cathode phenomena in hollow cathode arc discharge in vacuum wereinvestigated systematically. The influence of welding parameters on active zone ofhollow cathode , arc appearance and voltage-ampere curve was investigated.

小电流的发散态电弧能量密度低，柔性大，可作为局部加热热源进行真空钎焊；大电流的可作为理想的熔焊热源，进行各种难熔易氧化金属在真空条件下的高质量焊接。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。