商品描述
The piano is a keyboard instrument with a wide range of sounds and rich expressive power. It produces sound by triggering the hammer with the keys, combining mechanical precision and artistic appeal. Its core features are reflected in the following aspects: Structure and Principle A piano is composed of keys, strings, soundboard, pedals, and other components. The piano keys drive the felt covered hammers through a lever system to strike the steel strings, amplifying the vibrations on the soundboard to produce sound. The sustain pedal can prolong resonance, while the soft pedal changes the tone color. Modern pianos typically have 88 keys (covering 27.5Hz to 4186Hz), with top models reaching up to 108 keys.
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我们如何开始?
是什么使我们的产品唯一?
为什么我们喜欢我们的工作?
我们的商品是否质量上乘?
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我们如何开始?
是什么使我们的产品唯一?
为什么我们喜欢我们的工作?
我们的商品是否质量上乘?
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