... 数字式流速计 Digital tachometers 电子计数器 Electronic Counters 电子定时器 Electronic Timers ...
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A measured length of roadway over which electronic timers register the speed of a racing vehicle such as a dragster.
计速路段一段测量过长度的路段，上面有电子计时器记录比赛车辆的速度，如改装的高速汽车的速度。
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The device also contained two Sunbeam kitchen timers and one electronic countdown timer.
装置中还配备了一个新光厨房定时器和一个电子倒时器。
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