folded cylinder tr tube折叠: fold; cuttle; alias; enfoldm ...圆柱: column天线: antenna; aerial; antenna wir ...开关: Q-switching管: pipe; tube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:折叠圆柱天线开关管，即可在微信中查询翻译
