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。
The formulation and technology of the special material of extruding PA66 profile bar produced for cold bridge by twin-screw extruder were introduced.
介绍采用双螺杆挤出机生产冷桥用PA66挤出异型条专用料的配方及工艺。
The utility model is of bridge type structure of right and left upright pillars adding top beam, the lifting device with nut screw mandrel is moving along the upright pillars.
本实用新型为左右立柱加顶部横梁的桥式结构，螺母丝杆升降装置沿立柱上下移动。
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