3轴经济型数控
three-axis economical numerical control
经济型数控车床
economic NC lather
economic CNC lathe
economical style CNC lathe
economical NC machine tool
low-cost type CNC lathe
economical NC lathe
数控系统数字接口
NC system digital interface
不确定性经济系统
uncertain economic system
草原生态经济系统
Grassland ecological economic system
村级农业生态经济系统
agro-eco-economic system at village level
大型猪－沼生态经济系统
big hoggery-biogas system
电力系统经济布营
Economic Operation of Power System
电力系统经济调度
power system economic dispatching
电力系统经济分析
economical analysis of power systems
电力系统经济运行
economic operations
economical operation of power systems