bend stop valve

例句：

1. 1. The bendstop valve is used to prevent the flow of fluid from one direction to another.
   弯曲止回阀用于防止流体从一种流向另一种。
2. 2. The bend stop valve is essential for maintaining proper pressure in the pipeline system.
   弯曲止回阀对于保持管道系统中的适当压力至关重要。
3. 3. The bend stop valve was designed to improve the efficiency of the pumping process.
   弯曲止回阀被设计来提高泵送过程的效率。