名词
中文翻译：定时器
同义词：
['timer', 'timing device']
例句：
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1. The engineer used a timing gaugeto measure the time it took for themachine to complete its operation.
工程师使用计时器来测量机器完成操作所需的时间。
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2.The car's timing gauge displayed thatit was running on empty fuel tanks.
汽车的计时器显示它正在空油箱中行驶。
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3. The scientist used a timinggauge to study the reaction rate of thechemical reaction.
科学家使用计时器来研究化学反应的反应速率。