oxygen utilization
| efficiency
| oxygen utilization abbr. | |
| met. | 氧利用率; 用氧 |
| oil | 耗氧量 |
| efficiency abbr. | |
| adv. | 广告效果 |
| agric. | 效能 |
| auto. | 效率; 功 效; 功 率 |
| hydroel.st. | 效能 |
| interntl.trade. од. | 有效性 |
| math. | 有效性，效益 |
| met. | 效果 |
| radio.amat. од. | 效率 |
| |||
| 氧利用率; 用氧 (量) | |||
| 耗氧量 | |||
| 氧利用 | |||
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oxygen utilization : 19 phrases in 9 subjects |
| Earth sciences | 3 |
| Ecology | 2 |
| Oil / petroleum | 2 |
| Oil processing plants | 1 |
| Physiology | 1 |
| Space | 1 |
| Sports | 2 |
| Technology | 6 |
| Water resources | 1 |