This is so because the resistance to motion is essentially due to the deformation of the rolling elements and, hence, is not a sliding phenomenon.

之所以这样是因为对运动的阻力基本上源于滚动零件的变形，而不是滑动现象。

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Sliding resistance was replaced by the fixed value resistance, and potentiometer was used to adjust volt, it could make measurement of diode reverse characteristic more convenient.

用定值电阻代替滑线变阻器，用分压器调节电压，可使二极管反向特性的测量更加方便。

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Shifting your mental focus to feeling what your hands naturally do at the front of your stroke, can make you aware of the difference between sliding through the water, or creating resistance.

将你的思想焦点感觉你的双手做在游泳的时候。你通过水让你自己意识到滑动的差异，或创造的阻力。

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Walcott made amends by finally unlocking Sunderland's brave resistance after 80 minutes, sliding in a neat pass for Van Persie to steer a left-foot finish past Gordon.

BBC: Arsenal 3-2 Sunderland