名词
中文翻译：无火花操作
同义词：
['no spark operation', 'no spark flow']
例句：
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1.The new machine has a sparkless operation, which greatly improves efficiency.
这台新机器具有无火花运行，大大提高了效率。
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2. In the absence of a spark, the engine will not start.
在没有火花的情况下，发动机将无法启动。
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3. The engineer carefully checked the sparkless operation of the generator before starting it.
工程师仔细检查了发电机的无火花运行情况，然后才启动它。