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operation study | |||
operation research; operations research | |||
operational research | |||
job study; work study |
作业研究 : 28 phrases in 10 subjects |
Agriculture | 2 |
Aviation | 1 |
Business | 3 |
Corporate governance | 4 |
Electronics | 2 |
Explosives and Explosive Ordnance Disposal | 2 |
Management | 1 |
Name of organization | 11 |
Space | 1 |
United Nations | 1 |