字典網>> 英漢字典>> B開頭詞條>>back-to-back sawtooth wave的意思 漢英字典back-to-back sawtooth wave中文翻譯：【電】 背對背鋸齒波 英文字典英文字典相關詞條：back feed factor backward tracing back dating backward error backspace back-off system backward progression back-to-back repeater background of mass spectrum back of weld