serial data transfer

例句：

1. 1.The sequence of numbers is important for the calculation.
   这个数字序列对于计算很重要。
2. 2. The serial data transfer was interrupted by a network error.
   串行数据传输被网络错误中断了。
3. 3. The serial data transfer speed is slower than that of the parallel one.
   串行数据传输速度比并行的慢。