valve spring wire

例句：

1. 1.The valve spring is responsible for maintaining the proper pressure in the system.
   阀门弹簧负责维护系统中适当的压力。
2. 2. The valve spring wire was bent and needed to be replaced.
   阀门弹簧线被弯曲了，需要更换。
3. 3. The technician carefully removed the old valve spring wire and installed a new one.
   技术员小心地拆下了旧的阀门弹簧线，并安装了一个新的。