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open steel
hydroel.st. 沸腾钢
met. 不脱氧钢
steel. 不完全脱氧钢
open-steel
hydroel.st. 沸腾钢
open steel: 45 phrases in 8 subjects
Architecture1
Bridge construction1
Business1
Electronics2
General3
Metallurgy11
Oil / petroleum1
Technology25