dual - redundancy的用法和样例：
例句
- There only use one position sensor to achieve the dual coils commutator.
该换向电路与双位置传感器一起还能够实现双触发双余度换向。 - In order to improve the reliability of the system, redundancy technique is used in designing USMC.For the critical or important task, double redundancy management is adopted.
为了提高机载机电系统的可靠性，机电系统采用了双余度结构，以达到故障容错，进而实现整个飞机系统的高可靠性和安全性。
