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后备系统
busin. back-up system
IT backup system
tech. stand-by system
后备〔备用〕系统
IT back up system
后备备用系统
auto. back-up system
后备系统【核】
el. back-up system
后备 系统
: 14 phrases in 8 subjects
Aviation1
Business1
Computer networks1
Electronics5
Information technology3
Nautical1
Securities1
Technology1