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quality grade
agric. 品质等级
anim.husb. 肉牛质量评级
auto. 产品质量等级
met. 质量等级
tech. 质量品级
quality grade: 27 phrases in 10 subjects
Agriculture1
Animal husbandry1
Business1
China1
Economy2
Electric machinery2
Metallurgy4
Space2
Technology12
Telecommunications1