求翻译：机械精度设计与检测、金属工艺学、单片机原理及应用、机电传动与控制、数控加工工艺与编程、PLC原理及应用是什么意思？

Mechanical precision design and testing, metal technology, Microcontroller Theory and Applications, mechanical and electrical transmission and control, digital processing technology and programming, PLC theory and application

mechanical precision design and testing, and metals technology, single chip principles and applications, and mechanical and electrical transmission and control, CNC machining technology and programming, PLC principles and applications

Mechanical precision design and examination, technology of metals, monolithic integrated circuit principle and application, mechanical and electrical transmission and control, numerical control processing craft and programming, PLC principle and application

Technology of design and testing of mechanical precision, metal, single-chip microcomputer principle and applications, electrical and mechanical power transmission and control, numerical control processing technology and programming, principles and application of PLC

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