flow gate

例句：

1. 1. The flow gate is used to regulate the amount of water flowing through the pipeline.
   流动门用于调节通过管道的水量。
2. 2.The engineers installed a flow gate at the entrance to the factory to prevent accidents.
   工程师们在工厂入口安装了流动门以防止事故。
3. 3. The flow gate was designed to minimize the impact on the surrounding environment during construction.
   流动门的设计旨在最小化施工对周围环境的影响。