exhaust valve clearance

例句：

1. 1.The exhaust valve clearance is critical for maintaining engine efficiency.
   排气阀间隙对于保持发动机效率至关重要。
2. 2.The technician checked the exhaust valve clearance to ensure it was within safe limits.
   技术人员检查了排气阀间隙，以确保它保持在安全范围内。
3. 3. The manufacturer recommends a minimum exhaust valve clearance of 0.5 mm for optimal performance.
   制造商建议最小排气阀间隙为0.5毫米，以获得最佳性能。