词汇	normal expected value
释义	normal expected value 机标准预测值
随便看	Electron gastroscope electron gear electron gear shifting electron generator electron gun electron geometrical optics Electron government electron government affairs electron gun electron gun alignment electron-gun alignment electron gun alignment adjustment electron gun assembly Electron gun CAD of Gyrotron electron-gun cathode electron gun cathode ray tube electron-gun convergence ratio electron gun convergenc ratio electron gun current electron-gun current electron-gundensity multiplication electron-gun density multiplication electron-gun-density multiplication electron-gun evaporation electron gun filament electron gun for electron scrubbing