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| ★ 氧含量 | |||
| 含氧量 | |||
| 氧容量 | |||
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| 氧含量 (氧气的相对含量。) | |||
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oxygen content : 24 phrases in 13 subjects |
| Automobiles | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Metallurgy | 2 |
| Nautical | 2 |
| Nursing | 1 |
| Pediatrics | 2 |
| Physiology | 1 |
| Plastics | 1 |
| Space | 1 |
| Sports | 5 |
| Technology | 5 |
| Textile industry | 1 |