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Hidden arm type multipoint coal fines sampling device.
藏臂式多点煤粉取样装置。
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The secondary screens receive the coal from the crushers and remove the fines.
经压碎后的煤通过第二道筛，筛出细粉。
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The secondary screens receive the coal from the crushers and remove the fines.
经压碎后的煤通过第二道筛，筛出细粉。
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