It is difficult to ensure the consistency of the other working conditions for the magnetic separator by this method, causing large amount of time, labor and material consumption.
这种方法很难保证磁选机其他工况条件的一致性，且费时、费力、费材料。
Modern logistics are regarded as the third profit source or the forthprofit source of enterprises as well as decreasing of material consumption and increasing of labor- production rate.
现代物流被认为是继节约原材量和提高劳动生产率之后的“第三利润源”甚至“第四利润源”。
Modern logistics are regarded as the third profit source or the forthprofit source of enterprises as well as decreasing of material consumption and increasing of labor- production rate.
现代物流被认为是继节约原材量和提高劳动生产率之后的“第三利润源”甚至“第四利润源”。
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