单词	chimney draft
释义	chimney draft 烟囱通风
随便看	series modulation circuit series motor seriesmounting series mounting series-mounting series multi-level unit series multiple se-ries multiple series multiple arrangement series-multiple arrangement series multiple board series-multiple board series multiple connection series-multiple connection series multiple jack series multiple switchboard series-multiple switchboard Series multiplexing series multiplex telegraph series multiplication model series name series name recording series negative feedback series negative-feedback series-negative feedback