名词中文翻译
中文翻译：信号旋钮
同义词：
['control knob', 'switch knob', 'dial knob']
例句：
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1.The car's signal knob is located on the steering wheel.
汽车的转向盘上有信号按钮。
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2. She adjusted the volume control knob to increase the sound level.
她调整了音量控制旋钮，以增加声音水平。
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3. The engineer tested the safety switch knob before starting the engine.
工程师在启动发动机之前测试了安全开关旋钮。