![Teacher-explaining-how-to-use-a-Computer-Numerical-Control-milling-machine-to-a-small-group-of-young-male-students-at-vocational-high-school-in-Slovakia](https://videocdn.cdnpk.net/happy/content/video/premium/partners0910/thumbnails/BB_5751ed0a-a2b5-41f9-8302-0e064af54910_small.jpg)
Teacher explaining how to use a Computer Numerical Control milling machine to a small group of young male students at vocational high school in Slovakia
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