求翻译：　由于积碳的产生，汽缸压力的增高造成点火时间推迟，导致功率下降。另外，于进气的阻力增加，进气量不够，同时积碳也使油加浓的量不够，也会最终导致功率不够。此外，发动机中在混合油气的浓度以及点火对问没有达到要求的状况下工作，会导致不完全燃烧，废气的排放不能达到标准，污染环境。是什么意思？

Due to the production of coke, the cylinder pressure increase caused by the ignition delay, leading to power down. In addition, the increase in the resistance of the air intake, the intake air is not enough, while the coke also makes the oil thick enough, will eventually lead to insufficient power.

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　Due to the production of carbon, cylinder pressure increase caused by ignition timing delays, resulting in decreased power. In addition, in air resistance increases, inadequate intake, while carbon oil and strong enough, can eventually lead to insufficient power. In addition, in a mixed concentrati