One big difference between the two engines is how they turn fuel into energy. According to Engineering Explained, gas engines usually use a spark plug to ignite the mixture of fuel and air in the cylinder.

这两种发动机之间最大的区别就是将燃料转化为动能的方式。根据《汽车机械小百科》的解释，汽油发动机通常使用火花塞来点燃气缸内燃料和空气的混合物。