调音时，吉他手旋紧琴桥上的调整螺旋来修正所对应弹簧的位置，以此改变杠杆角度获得正确的张力。
To tune up, the guitarist tightens an adjustor screw at the bridge that alters the position of its corresponding spring, changing its leverage to obtain the right tension.
调音时，吉他手旋紧琴桥上的调整螺旋来修正所对应弹簧的位置，以此改变杠杆角度获得正确的张力。
To tune up, the guitarist tightens an adjustor screw at the bridge that alters the position of its corresponding spring, changing its leverage to obtain the right tension.
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