ответьте на вопросы.

1. what types of machine tools are there nowadays?

2. what are the basic operations at a workshop?

3. what is a lathe?

4. why must tools be made of very hard steels and alloys?

5. is the tool itself big or small?

6. what improves the accuracy of machine tools?

7. what is one of the main factors of engineering progress?

8. what forms the basis for automated workshops?

9. what is the main principle of a flexible line?

Елена060720007    2   30.10.2019 22:09    76