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decibels industry ballmmill chart colombia

The decibel symbol dB is a relative unit of measurement corresponding to one tenth of is used to express the ratio of one value of a power or field quantity to another, on a logarithmic scale, the logarithmic quantity being called the power level or field level, respectively.. It can be used to express a change in value e.g., 1 dB or 1 dB or an absolute value.

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