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minus nitrogen; nitrogen-hunger; nitrogen starvation | |||
nitrogen hunger; nitrogen stress | |||
nitrogen deficiency |
缺 氮 : 15 phrases in 8 subjects |
Agriculture | 6 |
Animal husbandry | 2 |
Aviation | 1 |
Desert science | 1 |
Ecology | 1 |
General | 2 |
Reproductive biology | 1 |
Technology | 1 |