基本解释通道倍增器同根派生 channeltron相关词英汉例句wafer channeltron image intensifier 薄片渠道像增强器Studies of Energy Resolution of Electron Spectroscopy and Channeltron Characteristics Using Elastic Secondary Electrons 用弹性电子测量能谱仪能量分辨率和电子倍增器的工作曲线channeltron更多例句