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架拱
construct. arch action
oil arching
架拱〔空〕
gen. arch; arching
架拱
: 318 phrases in 14 subjects
Agriculture4
Architecture36
Automobiles9
Aviation1
Bridge construction32
Construction4
Electronics5
Engineering geology1
Forestry1
General12
Hydroelectric power stations4
Metallurgy6
Rail transport3
Technology200