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 薄片渠道像增強器Studies of Energy Resolution of Electron Spectroscopy and Channeltron Characteristics Using Elastic Secondary Electrons 用彈性電子測量能譜儀能量分辨率和電子倍增器的工作曲線channeltron更多例句