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noun | adjective | to phrases
backwall n
gen. 后壁〔膜〕; 里壁; 水冷壁; 斜井工作面
backwall adj.
bridg.constr. 后墙
oil 背墙; 后壁; 后膜
backwall: 8 phrases in 5 subjects
Aviation1
Electrical engineering1
Electronics1
Exhibitions1
Technology4