seating time of piston rings

例句：

1. 1. The manufacturer has to ensure thatthe seating time of the piston ringsis within the required limits.
   制造商必须确保活塞环的装配时间在规定的限制范围内。
2. 2.During the seating time, the technicianscarefully inspected the piston rings forany signs of wear or damage.
   在装配时间内，技术人员仔细检查了活塞环是否有磨损或损坏的迹象。
3. 3. The piston rings must be seatedaccurately to prevent excessive friction andwear during operation.
   活塞环必须准确安装，以防止操作过程中出现过度摩擦和磨损。