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variable section
bridg.constr. 可变截面
eng.geol. 变截面
variable section: 50 phrases in 15 subjects
Architecture1
Automobiles6
Aviation1
Bridge construction10
Business1
Earth sciences1
Geophysics1
Hydroelectric power stations4
Metallurgy3
Nautical1
Oil / petroleum1
Rail transport1
Space1
Technology17
Wind Energy1