In the second chapter, based on the articulation principle of piano this essay finds two major factors which influence the performance timbre: the movement of the piano 's hammer and pedal.
第二章，本文从钢琴的发音原理出发，寻找出主要影响演奏音色的两大要素：琴槌的运动方式和踏板的运用。
The greatest movement is caused by shock which can be controlled by the installation of water hammer arresters.
最大的移动是由水锤撞击引起的，它可以用安装水锤消除器的办法来控制。
The greatest movement is caused by shock which can be controlled by the installation of water hammer arresters.
最大的移动是由水锤撞击引起的，它可以用安装水锤消除器的办法来控制。
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