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技术材料 jìshù cáiliào
commer. technical material
技术 材料: 44 phrases in 17 subjects
Agriculture2
Automobiles1
Aviation6
Business1
Chemistry1
Earth sciences1
Economy1
Electronics11
Environment1
General7
Horticulture1
Oil / petroleum1
Plastics1
Space5
Technology1
Textile industry1
United States2