热阴极

That is hot enough to cause the cathode to decompose and release oxygen.

那足够热而导致阴极分解并释放氧气。

Laser was used in anther set of experiments to irradiate the cathode in order to touch off the excess heat.

激光在另一组实验中被用来照射Pd阴极，以对"过热"的生成产生触发作用。

The effect of the microstructure of the cathode materials on arc starting in a noble gas atmosphere was analysed.

c纳米复合W-ThO〓阴极材料的热电子发射能力强，电弧稳定，能量集中。

It is very difficult to measure precisely the surface temperature of a photocathode in a vacuum system during the thermal cleaning.

然而。在热清洗过程中对处在真空系统中的光电阴极表面温度进行精确测量却是非常困难的。

The paper describes theory of beam noise reduction in adiabatically varying magnetic field, deduces the relation between magnetic field and noise , gives out fourth order Runge-Kutta formula of 2-order differential equation, simulates the effects of different magnetic field on electron motion, the results show good agreement with theory analysis,it confirms that adiabatically varying magnetic field near the cathode can reduce the beam noise.

文章描述了回旋波保护放大器电子束绝热降噪的机理，推导了噪声与磁场的关系和二阶微分方程的四阶精度龙格－库塔法求解电子运动方程的公式，编程计算了电子在不同磁场中的运动轨迹，模拟了不同磁场对电子运动的影响，模拟结果与理论分析相符合，证实了阴极表面附近的缓降磁场可以降低电子束的噪声。

It is true that all metal printing plate, whether it is visible light-sensitive version and the printed edition, it is to have the same aluminum plate as a base, but individual manufacturer to aluminum plate surface made by granula proceesing and anodically oxdation approaches.

诚然，所有金属印版，不论是热敏版还是可见平印版，都是拔取不异的铝板息为底基，但各个创息发明商不差铝板暗不天所息的颗粒冻办理和不阴极氧冻办理方法却不尽不异。

However, the manufacture process of TWT is so complicated that many kinds of subjects, such as electron optics, magnetics, cathode electronics, microwave electronics, electromagnetic fields theory, material science, mechanics and calorifics are involved in.

行波管的研制涉及到电子光学、磁学、阴极电子学、微波电子学、电磁场理论、材料学、机械与热分析诸多学科，工艺过程十分复杂。

A filament that emits electrons thermionically may be disposed around the rod in close proximity to the cathode.

一发射热电子化电子的丝极在靠近阴极处安装在支撑杆周围。

The positive ions coming to the cathode provide a mechanism by which electrons come out of the metal either thermionically or by high field emission.

向阴极移动的正离子使得电子由于热离或强场发射而从金属表面逸出。

After four thermal cycling tests, the cell performance measured at 650℃reduced about 20% mainly due to the delamination between the cathode and Ag current collecting layer.

而在四次热循环测试后，同样650℃测得的功率下降了20%，这主要是由于阴极和集电层Ag的分层造成的。

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。