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挺进西南 SW重庆新厂盛大开业
SW Chongqing new factory grand opening
吴 玖 P/44

精英人物
Elites & Talents 45

以不变的品质应对万变的市场
——访尚亚（上海）国际贸易有限公司总经理吴明都
Respond to changing markets with constant quality
——Interview with Mr. Wu Mingdu, General Manager of
SCH Brilliant Group Iinternational LTD(Shanghai).
吕晓峰 P/46
匠心制造 比肩德日
——访南京全弗精密机械有限公司总经理章城城
Ingenuity for manufacture
——Interview with Mr. Zhang Chengcheng, General
Manager of Nanjing Transfor Precision Machinery Co., Ltd.

郭 倩 P/50
技术前沿
Forward Technology 53

发动机轻量化途径及工艺创新
Engine lightweight approach and process innovation
赵宇龙 P/54

新型数控转台蜗轮副耐磨性能和精度保持性试验研究
Experimental study on wear resistance and precision
retention of a new type of CNC rotary table worm gear pair

潘绍刚 刁静林 P/59
关于数控车床的技术改进
Technical improvement on CNC lathe
刘华三 刘建军 P/62

基于RS485的PLC与变频器通讯实现
Realization of Communication between PLC and Inverter
Based on RS485

王国军 P/64
海德汉数控技术和测量技术：
可靠的工艺确保高精、高动态性能和高效率地生产
HEIDENHAIN numerical control technology and
measurement technology on EMO2019
海德汉供稿 P/66

PAL Robotics借助磁编码器技术实现机器人运动平衡
PAL Robotics achieves robot motion balance with
magnetic encoder technology
雷尼绍供稿 P/68