Test methods for determining hermeticity of electron devices with a helium mass spectrometer leak detector 用氦质谱仪检漏器测定电子元件密封性的试验方法
Oxygen free copper sheets , plates , strips , seamless pipes and tubes , rods , bars and wires for electron devices 电子设备用无氧铜薄片板材带材无缝钢管杆材棒材和线材
A solidstate photosensitive electron device whose current voltage charact eristic is a function of incident radiation 一种固态光敏电子器件,其电流电压特性是入射光的函数。
This system provides a stable foundation to deeply understanding and further studying of nano - structural single electron devices . 4 为深入地理解和更进一步地研究纳米结构单电子器件特性奠定了坚实的基础。
Branch of science that deals with the study and application of electron devices , e . g . , electron tubes , transistors , magnetic amplifiers , etc 关于电子器件(例如电子管、晶体管、磁放大器等)的研究与应用的一门科学分支。