841. 模具计算机辅助设计 Computer Aided Design of Models
842. 模拟电子技术 Analog Electronics Technique
843. 模拟电子技术基础 Basic Analog Electronics
844. 模拟电子线路 Analog Electrical Circuitry
845. 模拟集成电路 Analog Integrated Circuitry
846. 模式识别 Matrix Recognition
847. 模型辨识 Model Distinguish
848. 磨削原理 Principle of Grinding and Cutting
849. 耐腐蚀非金属材料 Erosion-Resisting Non-metallic Materials
850. 内燃机测试技术 IC Engine Test Technology
