Unit 1 Gettingto Know Numerical Control Unit 2 Types of NC Machine Tools Unit 3 What Is an NC Machine Tool Composed of? Unit 4 The Use of the Coordinate System Unit 5 What Is a Machine Control Unit? Unit 6 How to Operate NC Machine Tools Unit 7 Can You Write an NC Program? Unit 8 Tools for NC Machines Unit 9 Working in Workshop Unit 10 Getting to Know Turning Center Unit 11 Operating Milling Machine Unit 12 Getting to Know Machining Center Unit 13 The Future of NC Technology Words and Phrases