名词
中文翻译：电计时器
同义词：
['electric timer', 'electric stopwatch']
例句：
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1.We used the electrical stop watch to measure the time it took for the car to reach the top of the hill.
我们使用电计时器测量了汽车到达山顶所需的时间。
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2. The engineer used the electrical stop watch to ensure that the construction work was completed on schedule.
工程师使用电计时器确保施工工作按计划完成。
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3. The students used the electrical stop watch to track their progress during the marathon race.
学生们使用电计时器跟踪马拉松比赛中的进度。