名词
中文翻译：踏板
同义词：
['pedal', 'pedal spindle']
例句：
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1.The pedal spindle is responsible for controlling the speed of the bicycle.
踏板负责控制自行车的速度。
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2. The pedal spindle is a crucial component in the bicycle's transmission system.
踏板是自行车传动系统的关键部件。
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3. The pedal spindle is made of high-quality steel and has a smooth surface to reduce friction.
踏板由高质量的钢材制成，表面光滑以减少摩擦。