double-break contact assembly

例句：

1. 1. The new design of the car has a double-break contact assembly that improves fuel efficiency.
   这款新车采用了双断式接触装配体，提高了燃油效率。
2. 2. The engineers used a double-break contact assembly to connect the circuit boards.
   工程师们使用了一个双断式接触装配体来连接电路板。
3. 3. The double-break contact assembly is crucial for ensuring the safety of the electric motor.
   双断式接触装配体对于确保电机的安全性至关重要。