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托换基础,基层,座墩
gen. underpin
托换
tech. underpinning (技术)
托 换: 66 phrases in 15 subjects
Automobiles2
Bridge construction2
Commerce1
Computer numerical control1
Earth sciences2
Electronics1
Engineering geology17
Finances1
Geology1
Logistics1
Metallurgy2
Rail transport1
Securities3
Technology29
United Nations2