lower air cylinder gasket

例句：

1. 1. The engine needs a newlower air cylinder gasket to ensure smoothoperation.
   发动机需要更换新的低压空气气缸垫片以确保顺畅运行。
2. 2. The technicianreplaced the old lower aircylinder gasket with a newone.
   技术人员用一个新的低压空气气缸垫片替换了旧的。
3. 3. The engineer inspected the lower air cylinder gasket forany signs of wear and tear.
   工程师检查低压空气气缸垫片是否有磨损的迹象。