求翻译：喷油嘴是汽车发动机关键部件之一，喷油嘴工作的好坏，对每台发动机的功率发挥起着根本性作用。燃油不佳会导致喷油嘴工作不灵，使缸内积碳严重，缸筒、活塞环加速磨损，造成怠速不稳，油耗上升，加速无力，启动困难及排放超标；严重的会彻底堵塞喷油嘴，损坏发发动机。因此，定期使用汽车专用喷油嘴清洗剂清洗喷油嘴是很有必要的。是什么意思？

The injector is a car engine one of the key components, the nozzle is good or bad, each engine's power play play a fundamental role. Poor fuel will lead to the injector work not working, coke serious cylinder, cylinder, piston rings, accelerated wear, resulting in unstable idle speed, increased fuel