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Time-based sampling of primary subsamples
Author: technological excellence Date: 2019-11-27
The primary sub-samples are taken at a preset time interval, the first sub-sample is taken randomly at the first time interval, and the remaining sub-samples are taken at equal time intervals. The speed of the sampler across the coal stream should be kept constant throughout the sampling process. If the pre-calculated number of sub-samples has been collected but the coal has not flowed out in this sampling unit, sampling should continue at the same time interval until the coal flow ends.



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