treadles 

  1. 名詞
treadle複數: 踏板

    
                        
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    動詞
treadle第三者單數現在式:
不及物動詞:
踏動踏板
及物動詞:
(以踏動踏板)開動...(機械等)

    

    
                        
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例句

                

                    
    
                                                    
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                                "Depression bars" or " treadles " to detect vehicles;                            
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                                Pumping the treadles hard or fast can mask repetition problems.                            
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                                Sykes' lock-and-block system was used with depression-type treadles .                            
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                                It is propelled by a system of treadles and is called the American Star.                            
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                                Take note of how the tension of the treadles changes as the large chords play.                            
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