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低合金结构钢
hydroel.st. low-alloy structural steel
skhl 低合金结构钢
met. skhl steel (原苏联牌号;0.4 ~ 0.8Cr, 0.3 ~ 0.7Ni, 0.3 ~ 0.5Cu)
低 合金结构钢
: 9 phrases in 4 subjects
Architecture1
Bridge construction1
Metallurgy4
Technology3