The primary and secondary dry crushing and associated dry screening systems are designed and sized to operate 6000 hours per year or 68.5 percent of total time.
初级和次级破碎和配套的干筛系统的设计和规模确定，是依据每年运行6000小时或总时间的68.5%。
The primary and secondary dry crushing and associated dry screening systems are designed and sized to operate 6000 hours per year or 68.5 percent of total time.
初级和次级破碎和配套的干筛系统的设计和规模确定，是依据每年运行6000小时或总时间的68.5%。
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