查询词典 electron tube

X-ray ,which is excited from the X ray tube, has one wavelength scope, that is energy scope. According to the elements to be analyzed, X ray is choused by filter, and reach the sample. Atoms in the sample will absorb the X ray energy and the decay to emit the special x ray. The X ray will be collected by the collimator into the detector active area, and transferred into electron signal, the signal also will be processed in to energy spectrum and related concentration data by pulse processor with software.

从X光管通过激发Excitation发射出来一定波长范围也就是说一定能量范围的X射线，结合所需要分析的目标元素，使用滤光轮选择对应的能量范围的X射线，照射到样品上，样品中含有的元素原子电子受到激发会发射出其特征的X射线，同样通过Collimator准直器收集一定孔径的X射线进入到检测器Detector，检测器将感应到的X射线转换为电信号，电信号经过脉冲处理器Pulse Processor结合软件进一步将电信号转换成为能谱图以及相关浓度信息。

Through visual and scanning electron microscopic inspections and analyses of chemical, fracture surface energy spectrum and metallurgic analysis results of stator winding bar sample (including rectangle copper tube and flat copper bar) of generators Nos.

通过对某发电厂5、6号发电机静子线棒断裂试样的断口宏观及扫描电镜观察、化学成分、断口表面能谱成分、金相组织等检验结果进行分析，认为该线棒断裂原因为腐蚀疲劳。

The Dongguan spring core electron Limited company manages silicon-controlled rectifier, field tube, two triodes, rectification bridge best-selling consumer market.

东莞泉芯电子有限公司经营的可控硅、场管、二三极管、整流桥畅销消费者市场。

The Dongguan spring core electron Limited company sells on commission silicon-controlled rectifier, field tube, two triodes, rectification bridge great variety of goods, reasonable price.

东莞泉芯电子有限公司经销的可控硅、场管、二三极管、整流桥品种齐全、价格合理。

Dongguan long transports passes the electronic Limited company located at the Chinese Dongguan, the Dongguan spring core electron Limited company is the individual management which product and so on a silicon-controlled rectifier, field tube, two triodes, rectification bridge sales on commission wholesale.

东莞长运通电子有限公司位于中国东莞，东莞泉芯电子有限公司是一家可控硅、场管、二三极管、整流桥等产品的经销批发的个体经营。

MATERIAL AND METHODS: Thirty 30 healthy Sprague- Dawley adult male rats were randomly divided into 3 groups: control, alcohol 7.5 g/kg and alcohol 7.5 g/kg ＋ vitamin A 50 μ g/kg. Alcohol and vitamin A were administrated to the rats for 13 weeks by a gastric tube. The sperm counting ,motility and the percentage of abnormal sperm were observed. Serum testosterone was determined. The patholgical changes of testicle tissue of rats were observed by light and electron microscopy.

材料与方法： 30只健康雄性成年 SD 大鼠随机分为对照组、酒精组、酒精＋ VA 组，各组每日分别灌胃给予酒精0、7.5 g/kg 、酒精7.5 g/kg ＋ VA 50 μ g/kg ，连续13周后对各组大鼠的精子计数、精子活动率、精子畸形率、血清睾酮(Serum testosterone，T )进行检测，光、电镜观察睾丸生精上皮的组织学改变。

Consequently the beam transmission problem is solved well. The general design curves of microwave plasma drift tube are developed by the theory and they can be used for development of the plasma microwave devices. Ion channel, as a important phenomenon in the interaction between electron beam and plasma, is first introduced into the study of PASOTRON, to replace the concept'plasma channel'used in general plasma microwave devices. A model is created to describe the channel performance. The channel is not stable, it is oscillatory and the oscillation frequency is larger than that of plasma.

作为电子束与等离子体相互作用的一个重要现象，本文首次将离子通道的概念引入到了PASOTRON的研究中，以区别常规的等离子体通道概念，并通过建立的模型推出离子通道并非一稳定规则的通道，而是具有振荡特性，振荡频率高于等离子体频率，推出了当满足一定条件时束外可能没有电子而成为纯的离子通道，这种状态对微波器件有重要的价值。

The Hamamatsu R5924 photomultiplier tube of mesh type will be used for the time-of-flight counter of the Beijing Electron-Positron Spectrometer III.

北京谱仪III中的飞行时间探测器将采用滨松公司生产的细网型光电倍增管R5924。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。