 |
| |||
| 全〔量〕; 总含氮量 | |||
| 全氮量 | |||
| 全氮 | |||
| 总氮量 | |||
| 总氮 | |||
| 总氮量 | |||
| total nitrogen: 29 phrases in 9 subjects |
| Agriculture | 1 |
| Animal husbandry | 3 |
| Earth sciences | 1 |
| Ecology | 4 |
| General | 5 |
| Oil / petroleum | 1 |
| Oil processing plants | 2 |
| Technology | 9 |
| Water resources | 3 |
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