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to phrases
凹曲线
bridg.constr.
concave curve
;
notching curve
tech.
depression curve
凹
形
曲线
tech.
concave curve
凹 曲线
:
25 phrases
in 9 subjects
Agriculture
2
Aviation
1
Bridge construction
3
Business
1
Construction
1
Electronics
1
General
1
Technology
14
Telecommunications
1
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