求翻译：机械设计、工程制图、液压与气压传动、数控技术、机械电气控制及自动化、材料力学、理论力学、机械制造工艺，机械原理、AUTOCAD制图等。是什么意思？

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mechanical design, engineering graphics, hydraulic and pneumatic drive, numerical control technology, mechanical electrical control and automation, mechanics of materials, theoretical mechanics, mechanical, manufacturing processes, principles and mechanical AUTOCAD mapping, and so on.

Machine design, project charting, hydraulic pressure and pneumatic actuator, numerical control technology, mechanical electrical control and automation, materials mechanics, theoretical mechanics, machine manufacture craft, mechanism, AUTOCAD charting and so on.

Mechanical design, engineering drawing, hydraulic and pneumatic transmission, CNC electric control and automation technology, machinery, materials, theoretical mechanics, machinery manufacturing, mechanical principles, AUTOCAD drawings, etc.