duty classification of a relay

例句：

1. 1. The dutyclassification of a relay is crucial for maintaining the system's efficiency.
   继电器的分类责任对于保持系统效率至关重要。
2. 2.In this case, the duty classification of a relay is essential to ensure the safety of the operation.
   在这种情况下，继电器的分类责任对于确保操作安全至关重要。
3. 3. The engineers must carefully classify the duty of each relay to avoid potential hazards during maintenance.
   工程师必须仔细分类每个继电器的责任，以避免维护过程中的潜在危险。