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security system
agric. 安全 系统
auto. 防盗安全装置
China, law 保密制度
dril. 安全防护系统
el. 保卫系统
libr. 防盗系统
oil 安全防范系统
proj.manag. 保安系统
tech. 安全系统
security system: 204 phrases in 33 subjects
Air defense16
Animal husbandry1
Automobiles9
Aviation25
Business2
China9
Commerce2
Communications3
Computer networks12
Corporate governance2
Cryptography15
Data processing2
Earth sciences1
Ecology1
Economy2
Electronics32
Finances1
Hydroelectric power stations2
Information technology17
International Monetary Fund2
International trade3
Multimedia1
Name of organization14
Nautical2
Nuclear and fusion power1
Oil / petroleum3
Rail transport2
Securities1
Space15
Technology3
Telecommunications1
United Nations1
United States1