1.〔电信〕外差法,外差(本机)振荡器
2.外差作用
3.差拍
1.外差式的
1.(使)成拍,(使)致差,(使...)混合
1.consisting of, produced by, or operated by heterodyning signals
1.to combine a received radio-frequency wave with a wave of a different frequency to produce frequencies equal to the sum of and the difference between the original two signals