valve voltage drop

例句：

1. 1. The valve was designed to reduce thepressure drop in the pipeline.
   这个阀门被设计来减少管道中的压降。
2. 2. Theengineers found that the valve had asignificant voltage drop.
   工程师们发现，这个阀门有一个显著的电压降。
3. 3. The valvewas replaced to eliminate the voltage drop andimprove efficiency.
   更换了阀门以消除电压降并提高效率。