double-gun and [or] dual trace oscilloscope tube双: two; twin; both; dual枪: spear迹: mark; trace双迹示波器: double-trace scope; dual-channel oscilloscope; dual-beam oscilloscope暗迹示波管: skiatron; skitron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:双枪双迹示波管，即可在微信中查询翻译
