旋转减震器利用流体阻力原理，减小运动部件的速度，使运动更加顺上、柔和。
Torque dampers utilize the principle of fluid resistance to reduce the speed of moving parts and create a smooth and soft movement.
为此，用双手克服上减震器环的阻力拔下固定器。
To do this use both hands to pull off the retainer against the resistance of the upper damping rings.
为此，用双手克服上减震器环的阻力拔下固定器。
To do this use both hands to pull off the retainer against the resistance of the upper damping rings.
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