By comparing the characteristics of the natural spark with the man-made charge, Franklin was able to prove the similarity of electric matter and lightning.
通过对比自然电火花和人工电荷，富兰克林证实了带电物质和闪电之间的相似性。
This paper studies the characteristics of cyclic combustion variation in spark ignition engines by using high speed schlieren photographs.
介绍了运用高速纹影摄影对火花点火发动机循环变动特性的研究。
The operating characteristics of traditional Marine gas power plant was investigated, including spark ignition gas engine and dual fuel engine.
本文通过对传统船用煤气动力装置工作特点的分析，提出了一种煤气柴油组合机方案。
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