the action of setting something on fire or starting to burn
点火,着火
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three minutes after ignition, the flames were still growing .点火三分钟后,火焰仍越烧越高。
the process of starting the combustion of fuel in the cylinders of an internal-combustion engine
(内燃机汽缸燃料的)发火。
[count noun](一般作
(尤指以钥匙、开关发动的)发火装置
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he put the key in the ignition .他把钥匙插入发火装置。
"early 17th cent. (denoting the heating of a substance to the point of combustion or chemical change): from medieval Latin