direct-loaded safety valve

例句：

1. 1.The direct-loaded safety valve is designed to prevent the release of gas during operation.
   直接加载式安全阀设计用于在操作过程中防止气体释放。
2. 2. In this case, the direct-loaded safety valve was activated by a faulty sensor.
   在这种情况下，由于传感器故障，直接加载式安全阀被激活了。
3. 3. The manufacturer recommends that the direct-loaded safety valve be replaced after 5 years of use.
   制造商建议，在使用5年后应更换直接加载式安全阀。