auxiliary valve seat

例句：

1. 1. Theauxiliary valve seat is designed toensure proper functioning of the main valve.
   辅助阀门座的设计是为了确保主阀门的正确运行。
2. 2. During maintenance, the technician carefully inspected the auxiliary valve seatfor any signs of wear or damage.
   在维护期间，技术人员仔细检查了辅助阀门座，以查看任何磨损或损坏的迹象。
3. 3. The engineer made sure that theauxiliary valve seat was properly seatedbefore starting the engine.
   工程师确保辅助阀门座正确安装后才开始启动发动机。