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octane number

/ˈɒkteɪn ˈnʌmbə/

翻译: 衡量燃料在发动机中抗爆震性能的数值指标,表示燃料在内燃机中承受压缩而不发生提前点火的能力。

1 个条目

phrase

/ˈɒkteɪn ˈnʌmbə/C1formaltechnical
  • zh衡量燃料在发动机中抗爆震性能的数值指标,表示燃料在内燃机中承受压缩而不发生提前点火的能力。

A numerical measure of the resistance of a fuel to engine knocking or pinging, indicating the fuel's ability to compress without prematurely igniting in an internal combustion engine.

  1. Fuel ratingC1formal

    A standard measure of the performance of an engine or aviation fuel, indicating its resistance to knocking or pinging during combustion.

    zh辛烷值

    • High-performance cars require fuel with a high octane number.
    • The octane number of regular gasoline is typically 87.
    • Using fuel with a low octane number can cause engine knocking.