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certification system
China, law 认证制度
met. 认证体系
certification system: 46 phrases in 17 subjects
Air defense2
Aviation12
Business2
Chemistry1
China2
Economy1
Electronics3
Law1
Metallurgy5
Name of organization4
Nautical1
Oil processing plants1
Quality control and standards1
Space3
Technology5
Textile industry1
Wind Energy1

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