名词
中文翻译：指示器信号
同义词：
['tachometer signal', 'tachometer indication']
例句：
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1. Thetachometer signal is used to indicate the speed of the vehicle.
指示器信号用于指示车辆的速度。
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2. The engineer monitored the tachometer signal during the test.
工程师在测试期间监控指示器信号。
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3.The tachometer signal was used to adjust the fuel injection system.
指示器信号被用来调整燃油喷射系统。