求翻译：真正容易影响雾化的位置应该是喷油嘴的喷油口的外表面。燃烧不好的车，容易引起反冲，污染这个位置。举个例子，燃烧很好的车，不论什么时候打开火花塞，都是干净的；烧的不好的车，即使你换个新的火花塞，5分钟后你再拿下来看，还是黑黑的，全是积碳。是什么意思？

Position should be really easy to affect the atomization of the outer surface of the nozzle of the injector port. Burning a bad car, easily lead to recoil contamination of this location. For example, burning a good car, no matter what the time to open the spark plug is clean; burning car, even if yo

Real easy to affect the fog position should be a fuel injector of the injection port of the out