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钢琴键弹不起来怎么办
更新时间: 2020-11-07 00:00:00  

钢琴键弹不起来解决方法:自行装上和调整毛毡帘于适当的位置即可。弹不起来原因:钢琴这些上下运作转动点的“轴承”(琴键的一级杠杆除外)是由呢毡圈裹着申达针所替代,而管制呢毡的轴架又是木材制成;黑、白键前端底面长方形扁销钉孔和琴键中处定位孔的呢毡和琴键本身都是极易受潮。此些材料受潮之后的摩擦系数随着膨胀系数的升高而增大,长时间受潮就产生了琴键回返滞呆,严重的甚至弹奏无声。

关键词: 琴键 起来 怎么办

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