asphalt emulsion electronic system
Geo-science Electronic System
safety monitoring programmable electronic system
touch-probe electronic system
blind controller system
change-over switch controller
fail safe controller system
monitor and controller system
motor controller system on a chip
power switch controller
Programmable Logic Controller System
Backup System
辅助系统
后备系统
备用系统
备份系统
推靠系统
容灾系统
辅助配套技术
Equipment and backup system