principal advantage

• 主要优点

principal advantage的用法和样例：

例句

1. The major advantage to sequential systems is their low cost.
   顺序存取系统的主要优点是便宜。
2. The chief advantage of phase shift modulation lies in its ability to encode more than one bit of data in each shift.
   相移调制的主要优点是可以在一个相移变化中编码一位以上数据。