gas port nose

例句：

1. 1.The car's gas port needs to be replaced immediately.
   这辆车的气门嘴需要立即更换。
2. 2. The engine is running smoothly with the new gas port.
   新换的气门嘴让发动机运行得非常顺畅。
3. 3.The mechanic checked the gas port and found a small leak.
   机械师检查了气门嘴，发现有轻微的泄漏。