The primary and secondary drycrushing 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%。
2
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。
3
PS series Sand Marking Machine is used for crushing, pebble, andesite, granite etc into manufactured sand by dry method.