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The circuit board resistance on the various colors of the circle represents what does this mean?

Resistance color ring Meaning: color ring color: black brown red orange yellow green blue purple gray in turn represent 0 1 2 3 4 5 6 7 8 9, four-color ring resistance of the first and second color ring as RMS, the third color Ring for the rate, the fourth channel for the error value;
 
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