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B-stage
plast. B 阶段; 半熔阶段; 不溶可熔阶段〈酚醛树脂〉
polym. 乙阶
tech. 乙阶段
B-stage: 14 phrases in 6 subjects
Agriculture1
Chemistry2
Plastics5
Polymers1
Technology3
Textile industry2