例句與造句

1. The laboratory has measurement capability for frequency and amplitude modulations , for carrier frequencies in the range 150 khz to 1 . 3 ghz
   本所可為載頻由150khz至1 . 3ghz的調(diào)制器提供調(diào)頻及調(diào)幅測量服務(wù)。
2. It's difficult to find frequency and amplitude modulation in a sentence. 用frequency and amplitude modulation造句挺難的