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1. The speed teleindicator on the car shows the current speed.
汽车上的速速指示器显示当前速度。
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2. The engineer used a speed teleindicator to measure the distance traveled.
工程师使用一个速度指示器来测量行驶的距离。
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3. The speed teleindicator helped the driver to maintain a safe speed.
速度指示器帮助驾驶员保持安全的速度。