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 spark lead [′spärk ‚lēd] (mechanical engineering) The amount by which the spark precedes the arrival of the piston at its top (compression) dead-center position in the cylinder of an internal combustion engine.
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