viewing gun cathode显示: show; display; demonstrate; ...电子枪: electron gun阴极: negative pole; negative elec ...电子枪阴极: block cathode; cathode of electron gun显示电子学: iv: display electronics下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:显示电子枪阴极，即可在微信中查询翻译
