fuel tank filler cap

例句：

1. 1. The fueltank filler cap is essential for ensuringthe proper functioning of the engine.
   燃油箱填充盖对于确保发动机正常工作至关重要。
2. 2. Themechanic replaced the fuel tank filler capafter a recent oil change.
   在最近的一次油换之后，机械师更换了燃油箱填充盖。
3. 3. The driver carefully checked thefuel tank filler cap before starting thecar.
   司机在启动汽车之前仔细检查了燃油箱填充盖。