double gate valve

例句：

1. 1.The double gate valve is used to regulate the flow of water in a pipeline.
   双闸阀用于调节管道中的水流。
2. 2. The double gate valve is essential for maintaining the integrity of the pipeline system.
   双闸阀对于保持管道系统的完整性至关重要。
3. 3. The double gate valve is commonly used in industrial applications where precise control of fluid flow is required.
   双闸阀在工业应用中被广泛使用，需要精确控制流体流动。