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- Keywords extended schottky emission electron gun; 关键词 扩展的肖特基发射电子枪;
- back emission electron radiography 反向发射式电子射线照相
- field emission electron microscope 场致发射电子显微镜
- The emission of visible light by a hot object. 白热光物体遇热发出可见光
- An electrode used in certain electron tubes to provide secondary emission. 中间极,二次发射电极一种用于一定电子管作第二次发射电极
- The amount or rate of emission or ejection. 排放量流量、流速,或排出量,排出的速度
- In cathode ray tube display, the continuation of light emission from phosphor after excitation by the electron beam. 在阴极射线管显示器中,用电子束激励后荧光物质光发射的持续现象。
- The transmitter was pulsed by an electron tube. 电子管使发射器产生脉冲波。
- An electron tube having a cathode and an anode. 电子二极管有一个阳极和一个阴极的电子管
- Emission and propagation of energy in the form of rays or waves. 发射以光线或波的形式发出和传播能量
- One set of provisions tightens emission standards. 一套使排放标准更加严格的规定。
- A brief, sudden emission of air, vapor, or smoke. 一阵烟空气、蒸汽或烟雾短促而突然的散发
- An example is the emission of light from matter. 物质的发光即为一例。
- The number of electron pairs an atom can share with other atoms. 共用电子对数,共价一个原子与其他原子共用的电子的对数
- An electron with a negative charge, as contrasted with a positron. 电子带有负电荷,与正电荷相反的电子
- More stringent fuel and vehicle emission standards. 收紧车用燃料及车辆废气排放标准。
- Emission of light from the sun is strong. 阳光的照射很强。
- Emission of smoke from chimneys is an offense. 在这里排放烟雾是违法的事情。
- SPECT: Single Photon Emission Computer Tomgraphy. 单光子发射计算机断层扫描仪。
- X-ray emission of supernova remnants. 超新星遗迹的X射线辐射。