We'll be talking about the fact that this is an interval of a third; it spans three letter names a little bit later on.
我们以后会谈到，这其实是个三度音程，它跨越了三个音名。
2
A "1" is indicated by a data pulse, occurring in the middle of the bit cell interval.
数据“1”则表示在单元间隔的中间有数据脉冲的存在。
3
Simulation results show that compared with fixed training interval schemes, the improved algorithm can achieve better BER (Bit Error Rate) performance while keeping lower system overhead.