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燕尾榫 yànwěisǔn
el.mach. swallowtail
oil dovetail
tech. combed joint; dovetail tenon; swallow tail; undercut tenon; dove tenon
燕〔鸽〕尾榫
gen. swallowtail
燕尾榫: 36 phrases in 4 subjects
Aviation1
Construction1
Metallurgy1
Technology33