The government encourages this practice, and provides many preferential policies and facilitation measures for college students.
政府鼓励这种做法，并为大学生提供了许多优惠政策和便利措施。
A description is made of application and practice of the preferential-bulk-branch flotation technique in Dashan Concentration Plant.
介绍了优先混合分步浮选工艺在大山选矿厂的应用实践。
A description is made of application and practice of the preferential-bulk-branch flotation technique in Dashan Concentration Plant.
介绍了优先混合分步浮选工艺在大山选矿厂的应用实践。
应用推荐