• 1. advanced ignition timing: 提前发火正时
• 2. ignition advanced timing: 点火提前角

• 1.The results show that the start timing of combustion is advanced and the ignition delay period is shortened.
  通过对燃烧特征参数的计算分析，发现生物柴油的燃烧始点有所提前，滞燃期缩短；
  dict.yoduao.com

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