operative technology
1.High Gradient Magnetic Separation (HGMS) is a new, efficient and speedy separation technology The technology characteristics and the influence of operative conditions on the dust removal efficiency of HGMS were systematically studied in this paper.
2.The basic thoughts of advanced vocational educational healthy and efficient development in our country are technology, knowledge, post, quality aim, profession, civil system of running a school, market regulation, the combination of school and enterprise and the co-operative system of school and community.

