名词短语
中文翻译：两次独立的点火
同义词：
['three independent ignitions', 'three separate ignitions']
例句：
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1.The car had two independent ignitions that could be used to start it.
这辆车有两个独立的点火装置，可以用来启动它。
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2. The engine has three independent ignitions for better performance.
发动机有三个独立的点火装置，以获得更好的性能。
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3.The pilot had to use three separate ignitions to land the plane safely.
飞行员不得不使用三个独立的点火装置来安全着陆飞机。