名词中文翻译
中文翻译：拖把转速表
同义词：
["拖把转速计例句：1. The car's engine is running smoothly", 'and the drag-cup tachometer shows a good speed.（汽车的引擎运行平稳，拖把转速表显示了良好的速度。）']
例句：
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1. The car's engine is running smoothly, and the drag-cup tachometer shows a good speed.
汽车的引擎运行平稳，拖把转速表显示了良好的速度。
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2.The mechanic checked the drag-cup tachometer before starting the engine.
机械师在启动发动机前检查了拖把转速表。
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3. The engineer used the drag-cup tachometer to monitor the vehicle's performance during testing.
工程师使用拖把转速表来监测车辆在测试期间的性能。