磁层-电离层系统(MI系统)
Magmetosphere-Ionosphere(MI) system
电力牵引供电系统电源
power supply from electric traction feeding system
电梯系统优化
optimization for elevator group control system
电系统电压变动
electrical system voltage variation
微机电系统电镀
microelectro-mechanical system plating
智能电话语音系统
Intelligent telephone phonetic system
话音系统语法节点
syntax node， voice system
syntax node
voice system
数字化语音系统控制器
digital voice system controller
数字无线语音系统
digital wireless voice system
语音系统字汇大小
voice system vocabulary size