Because coal for power generation varies widely and has high foreign substance content and low grindability, the life time of the rollers in medium speed pulverizer is shortened.
由于发电用煤种类多、杂质含量偏高，可磨性较差，造成中速磨煤机磨辊耐磨寿命缩短。
Because coal for power generation varies widely and has high foreign substance content and low grindability, the life time of the rollers in medium speed pulverizer is shortened.
由于发电用煤种类多、杂质含量偏高，可磨性较差，造成中速磨煤机磨辊耐磨寿命缩短。
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