平衡三相系统
balanced three-phase system
三相接地系统
grounded three- phase power system
粮食产后系统
grain postproduction system
grain postproduction systems
grain postproduction
粮情测控系统
measurement and control system for the condition o
Granary Measuring and Controlling System
system for measuring and control condition of stored grain
garin condition monitoring systme
measurement and control system for condition of stored-grain
粮库控制系统
grain storage control system