tra istor vibrating-reed micro-quantity electrometertransistor vibrating-reed micro-quantity electrometer晶体管: transistor; crystal valve振: shake; flap; wield簧: reed spring量: measure capacity静电计: electrometer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:晶体管振簧式微量静电计，即可在微信中查询翻译
