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The areas conducted by equipment is 254.31 million m 2, the machinery cleaning rate being 13.85.
其中机械清扫面积25431万平方米, 机械清扫率13.8%.
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Negative pressure air system ensures the higher cleaning rate and improves the operational environment.
负压风选结构可获得较高的清洁率,并改善作业环境.
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