首頁›Browse›D›downconverterdownconverter編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看downconverterdownconverter — 名詞名詞1. a device that converts a higher-frequency signal to a lower frequency1.名詞釋義降頻器a device that converts a higher-frequency signal to a lower frequency例句The satellite dish uses a downconverter to change the signal frequency.