double-seated ball valve

例句：

1. 1.The double-seated ball valve is used to control the flow of oil in pipelines.
   双座球阀用于控制管道中油的流动。
2. 2. The double-seated ball valve is a crucial component in preventing leaks in pipelines.
   双座球阀是防止管道泄漏的关键部件。
3. 3. The double-seated ball valve is designed to minimize pressure drops and improve efficiency.
   双座球阀设计成最小化压力损失并提高效率。