求翻译：　由于没有燃烧这个过程，实际上喷油嘴内很难形成积碳，更多的是一些汽油内的杂质留在了喷油嘴内，给油道形成一定阻塞，影响喷油嘴的实际喷油量，进而，发动机在运行过程中得不到应有的燃油空气混合比，在怠速时发动机会出现异常的抖动，在加速时驾驶者会感觉车辆开起来很"肉"。是什么意思？

The absence of combustion of this process, in fact, within the nozzle is difficult to form coke, is some gasoline impurities stay in the nozzle, the formation of certain obstruction, affecting nozzle injector to the oil path The amount, in turn, the engine during operation are not the proper fuel ai