discharge valve cage

例句：

1. 1. The engineer carefully dismantled the old valve cage to replace itwith a new one.
   工程师仔细拆开旧的阀笼，换上新的。
2. 2. The technician hadto disassemble the valve cage to accessthe damaged part.
   技术人员不得不拆开阀笼以接触损坏的部分。
3. 3. The new valve cage wasdesigned to improve efficiency and reduce noise.
   新设计的阀笼旨在提高效率和减少噪音。