noun 下载 🔗分享 早燃,预燃。 The premature detonation of a fuel charge in Four-stroke cycle engines. Examples : "After using the wrong type of fuel, the mechanic suspected preignition was damaging the car's engine. " 使用错误的燃油后,机械师怀疑是早燃在损坏汽车的发动机。 technical vehicle machine energy fuel physics science technology 与AI对话词汇游戏阅读练习