英语词汇“spark lead”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	spark lead
释义	spark lead \ˈ ̷ ̷ˌlēd\ noun : the amount of advance by which the production of the spark in the cylinders of an internal-combustion engine precedes the arrival of the piston at the top dead center position
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