spontaneous ignition point

例句：

1. 1. The engine's spontaneous ignition point ishigh, which means it needs more fuelto start.
   发动机的自发引燃点很高，这意味着它需要更多的燃料才能启动。
2. 2. The researcher found that the spontaneousignition point of the fuel waslower than expected.
   研究人员发现，燃料的自发引燃点比预期的要低。
3. 3.The engineer carefully adjusted the spark plugs to ensure the engine would not havea spontaneous ignition point.
   工程师仔细调整了火花塞，以确保发动机不会有自发引燃点。