Auto speed up improvement in speed but could not see anything wrong

Answers:1   |   LastUpdateAt:2012-06-02 10:51:38  

Question
Pinky
Asked at 2012-05-31 20:08:59
Auto speed up the improvement in speed, but could see nothing wrong
Answer1IsidorAnswered at 2012-06-02 10:51:38
The friction clutch .
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