名词
中文翻译：齿轮计量器
同义词：
['gear indicator', "speedometer例句：1. The gear meter on the car shows the engine's RPM.（汽车上的齿轮计量器显示发动机的转速。）2. The engineer used the gear meter to measure the machine's efficiency.（工程师使用齿轮计量器测量机器的效率。）3. The gear meter is essential for monitoring the vehicle's performance.（齿轮计量器对于监测车辆的性能至关重要。）"]
例句：
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1. The gear meter on the car shows the engine's RPM.
汽车上的齿轮计量器显示发动机的转速。
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2. The engineer used the gear meter to measure the machine's efficiency.
工程师使用齿轮计量器测量机器的效率。
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3. The gear meter is essential for monitoring the vehicle's performance.
齿轮计量器对于监测车辆的性能至关重要。