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to phrases
操作研究
econ.
operation research
interntl.trade.
operations research
met.
operational research
tech.
work study
textile
operation study
操作【营业】研究
telecom.
operation research
;
operations research
;
operational research
操作 研 究
:
16 phrases
in 10 subjects
Aviation
4
Business
1
Ecology
1
Electronics
3
Environment
1
Explosives and Explosive Ordnance Disposal
1
French
1
Management
2
Shipbuilding
1
Telecommunications
1
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