動詞 heterodyne:

1. combine (a radio frequency wave) with a locally generated wave of a different frequency so as to produce a new frequency equal to the sum or the difference between the two

形容詞 heterodyne:

1. of or relating to the beat produced by heterodyning two oscillations

het.er.o.dyne

adj.（形容詞）
Having alternating currents of two different frequencies that are combined to produce two new frequencies, the sum and difference of the original frequencies, either of which may be used in radio or television receivers by proper tuning or filtering.
外差的：由兩股不同頻率的交替電流聯(lián)合產(chǎn)生兩個新的頻率的，原頻率的總和及差拍均可通過適當調(diào)頻或濾波用于無線電或電視接收
v.tr.（及物動詞）
het.er.o.dyned,het.er.o.dyn.ing,het.er.o.dynes
To combine (a radio-frequency wave) with a locally generated wave of different frequency in order to produce a new frequency equal to the sum or difference of the two.
外差：把（一個無線電頻率波）與另一個頻率不同的局部產(chǎn)生的電波層混合，以產(chǎn)生相當于原來兩個的總和或差拍的新頻率

來源：
hetero-
hetero-
-dyne [power, frequency] from Greek dunamis [power] * see dyne
-dyne [功率，頻率] 源自 希臘語 dunamis [功率] *參見 dyne