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period section
 period section
gen. 周期断面型钢
| steel
 "Steel"
mil. "钢"
 steel
gen. 钢铁
environ.
hydroel.st.
space 钢制的
tech. 钢制
textile 钢制品; 炼钢业
 steels
bridg.constr. 钢材

to phrases
period section
gen. 周期断面型钢
period section steel
: 3 phrases in 1 subject
Metallurgy3