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%。
In order to coordinate the smooth implementation of dry acetylene process, it is necessary to traditional wet process calcium carbide crushing process improvement.
为了配合干法乙炔工艺的顺利实施，必须对传统的湿法工艺中电石的破碎工艺进行改进。
PS series Sand Marking Machine is used for crushing, pebble, andesite, granite etc into manufactured sand by dry method.
PS系列制砂机是主动将玄武石、鹅软石、安山石、花岗岩等骨材破碎，用干式法生产人工砂。
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