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up-grading
met. 提高等级品位; 增强; 加固; 富集; 浓缩
textile 提高等级
up-grade
bridg.constr. 上坡
up grade
IT 升级
up-grading: 27 phrases in 14 subjects
Agriculture2
Animal husbandry3
Automobiles1
Bridge construction2
Business1
Chess1
Construction1
Consulting1
Electronics1
General6
Genetics1
Metallurgy4
Quality control and standards1
Technology2