automatic switch operation control system based on at89c 51的刀闸自动操作控制系统
analogue switching operation order system of electric equipment 模拟式电气设备倒闸操作票系统
hook bars for disconnecting switch operation 隔离开关操作用钩杆
the perioperative nursing care for the neonates undergone the arterial switch operation 新生儿大动脉转位术的围术期护理
formatting accurate operation orders is the premise and key for correct switching operation as well asthe guarantee for steady performance of substations and power system 开列正确的操作票是正确倒闸操作的前提和关键,也是变电站及电力系统安全稳定运行的保证。