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to phrases
goaf
[gəuf]
n
gen.
空岩
bridg.constr.
采空区
eng.geol.
老窿
tech.
老塘
;
釆空区
;
废矿
;
废矸堆
;
不含矿的岩石
goaf:
12 phrases
in 4 subjects
Coal
1
Ecology
1
Engineering geology
1
Technology
9
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