速调管 Save Sign in to save words Traditional (Taiwan): 速調管 sùtiáoguǎn ㄙㄨˋ ㄊㄧㄠˊ ㄍㄨㄢˇ klystron (electronic tube used to produce high frequency radio waves) Character by character 速(sù)fast 调(tiáo)harmonize 管(guǎn)surname Guan A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0