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to phrases
camber arch
archit. 平圆三心拱
el. 曲拱
eng.geol. 微弯拱环
hydroel.st. 平拱
met. 弯拱
tech. 外平内弯拱
camber arch: 11 phrases in 4 subjects
Construction3
Electronics4
Engineering geology1
Hydroelectric power stations3