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lamp efficacy; luminous efficacy | |||
efficiency; operating efficiency |
efficiency : 25 phrases in 13 subjects |
Agriculture | 2 |
Chemistry | 2 |
Construction | 1 |
Earth sciences | 3 |
Economy | 2 |
Electronics | 1 |
Finances | 1 |
General | 5 |
Information technology | 1 |
Life sciences | 2 |
Marketing | 1 |
Natural sciences | 3 |
Technology | 1 |