There are numerous patented technologies which can be piggybacked individually or collectively onto a carrier frequency to elicit all kinds of effects. 在一個(gè)載波頻率上有著(zhù)眾多的專(zhuān)利技術(shù)，它能個(gè)別偷偷的或集體的引起所有種類(lèi)的影響。
FDM assigns a discrete carrier frequency to each data stream and then combines many modulated carrier frequencies for transmission. 它為每個(gè)數據流指定一個(gè)離散的載波頻率，然后合并調制過(guò)的載波頻率進(jìn)行傳輸。
