名词短语
中文翻译：正确定时点火
同义词：
['properly timed ignition', 'correct timing ignition例句：1. The engine needs a correct timed ignition to start smoothly.（发动机需要正确的定时点火才能顺利启动。）']
例句：
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1. The engine needs a correct timed ignition to start smoothly.
发动机需要正确的定时点火才能顺利启动。
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2.The car's engine has a correct timed ignition system that ensures smooth operation.
这辆车的发动机有一个正确的定时点火系统，确保平稳运行。
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3.The pilot needed to ensure the correct timed ignition for the aircraft to land safely.
飞行员需要确保飞机的定时点火正确，以便安全降落。