seal by precision fit

例句：

1. 1. The seal was precisely cut to fit the opening perfectly.
   这个密封件被精确切割，以完美地适应开口。
2. 2.The new car's engine is sealed by precision fit, ensuring smooth operation.
   这款新车的发动机通过精密配合密封，确保了顺畅运行。
3. 3. The seal was designed to prevent leaks and ensure a precise fit.
   该密封设计用于防止泄漏并确保精确配合。